Key takeaways
- Otterly.AI is the cheapest entry at $29/mo, but Lite caps at 15 prompts. Reaching 50 prompts means the $189 Standard plan (100 prompts), so there is no real 50-prompt tier.
- Peec AI Starter and Promptwatch Essential both cost $95/mo for 50 prompts. Peec limits you to 3 chosen engines and keeps the API behind Enterprise. Promptwatch includes all engines, the API and MCP.
- ZipTie bills per check, so 50 daily prompts across 3 engines lands around $43/mo, and about $91.50 across all seven. It is the cheapest honest 50-prompt option if you can live with monitoring only.
- Cost per prompt hides the real differences: response volume, engine coverage, and whether the tool helps you fix anything after it finds a gap.
- Verify every number on the vendor pricing page before you buy. These plans change often.
What a 50-prompt budget actually means
Fifty prompts is a sensible size for a first ChatGPT tracking set. It is enough to cover your category, a few competitor comparisons, and some brand queries. It is too small to track a large product catalog, and that is fine.
The trouble is that vendors count differently. One tool counts prompts. Another counts prompts times engines times days. A third charges per check. So 50 prompts can mean 1,500 responses a month on one tool and 6,000 on another.
The math that matters: 50 prompts on 3 engines checked daily for 30 days is 4,500 answers. That is exactly what Peec's Starter plan allows. Promptwatch's Essential plan lists 6,000 responses for the same 50 prompts. Otterly's Lite plan has no 50-prompt option at all.
One more thing before the pricing. A prompt is not a single search. Promptwatch Data's ChatGPT query fanout report found the measured average fell from about 2.15 searches per response in early December 2025 to about 1.84 by early March, and average fanout query length dropped from roughly 117 characters to the high 80s. Short, keyword-style prompts in your set are a reasonable way to match that behavior.
The four trackers at a glance
| Tool | Entry price | Prompts at entry | Engines at entry | Cost to reach 50 prompts | Notable gap |
|---|---|---|---|---|---|
| Promptwatch Essential | $95/mo | 50 | All 9 models | $95/mo | Content Agent and crawler logs start on higher plans |
| Otterly.AI Lite | $29/mo | 15 | 4 (ChatGPT, AI Overviews, Perplexity, Copilot) | $189/mo (Standard, 100 prompts) | No 50-prompt tier; API and MCP start at Standard |
| Peec AI Starter | $95/mo | 50 | 3 of 6 chosen | $95/mo | Extra models cost more; API and SSO Enterprise-only |
| ZipTie | From about $25.65/mo | Build your own | Up to 7, same price each | About $43/mo on 3 engines | Content generation and API are paid add-ons |
Sources: Promptwatch's 2026 platform comparison, vendor pricing pages (Otterly, Peec, ZipTie), and third-party roundups from Geoptie and squirrelscan. Treat the numbers as a snapshot.
The comparison above is published by Promptwatch, so read it with that in mind. The pricing columns are still useful because they show prompts, responses and engines side by side.
Promptwatch Essential: $95 for 50 prompts, every engine
Promptwatch Essential is $95/mo (about $79 a month on annual billing, since annual gives 12 months for the price of 10). You get 1 project, 1 seat, 50 prompts, 6,000 responses, all AI models, 500 Agent Credits, country tracking, 200K visitor events, a weekly site audit, 360 Insights, content gap analysis, plus the MCP server and API.
What stands out at this budget:
- No engine is an add-on. ChatGPT, Google AI Overviews, AI Mode, Gemini, Perplexity, Copilot and the rest are included. Promptwatch tracks the real user interfaces rather than only API outputs, which matters because what ChatGPT shows a user can differ from the API.
- 6,000 responses on 50 prompts means more runs per prompt than Peec's 4,500, so you get a less noisy read on each one.
- Prompt volumes, difficulty scores and query fan-outs are part of the product, so you can judge which of your 50 prompts are worth keeping.
- Content gap analysis is included, which tells you which pages to write or fix. On this plan you work from those gaps yourself. The automated Content Agent starts at Business ($579), and Professional ($245) adds 5 AEO articles and crawler logs.
The limit is plain: 1 project and 1 seat. If you track several brands or have a team that all needs to log in, you will outgrow it. Agency plans start at $199/mo for Kick-off.
You can try it on a 7-day free trial on monthly billing, and the free Explore plan tracks 10 prompts on ChatGPT only if you just want a taste. Confirm the details at promptwatch.com/pricing.
Otterly.AI: cheapest start, awkward jump to 50 prompts
Otterly is the name that appears on nearly every budget roundup, and for good reason. Lite is $29/mo, tracks ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot daily, and includes unlimited team members, brands and competitors.
The problem for this particular budget is that Lite caps at 15 prompts. I could not find a way to buy 50 prompts on Lite. The paths are:
- Standard at $189/mo for 100 prompts, which also unlocks API, MCP and Agent Analytics (2,000 API requests, 2,000 MCP requests, 200K agent events a month).
- Lite plus extra prompts at $99 per 100 prompts, which is pricey if you only need 35 more and, as far as the published pricing shows, is not sold in smaller blocks.
Claude, Google AI Mode and Gemini are paid add-ons. One roundup puts Otterly Lite at about $76/mo once you add Gemini ($9), AI Mode ($9) and Claude ($29), still at only 15 prompts.
Annual billing is 15% off. One caveat: the scraped pricing page also showed stale-looking $25 and $160 figures, likely an older or annual view, so use $29 and $189 as monthly prices.
Where Otterly genuinely fits: you want a cheap proof of concept, you have 10 to 15 prompts that matter, or you run an agency that needs unlimited seats and brands. It also includes a Query Fan Out tool on every plan, and its focus on ChatGPT ads is a differentiator. It is a poor fit if you specifically want 50 prompts at a low price.
Peec AI Starter: a clean 50-prompt plan with a 3-engine cap
Peec is the closest like-for-like rival to Promptwatch Essential. Both are $95/mo, both give you 50 prompts and 1 project. Peec Starter gives you daily tracking, 1 country and unlimited users, and counts 4,500 answers a month (50 prompts times 3 models times 30 days).
The trade-off is engines. You pick 3 from ChatGPT, AI Mode, AI Overviews, Copilot, Gemini and Naver AI. For a ChatGPT-first team that is workable: ChatGPT plus two Google surfaces is a sensible trio. But:
- Perplexity and the API-based models (Claude, Grok, DeepSeek, Mistral and others) are Enterprise only.
- Extra models cost extra. Geoptie says about $30/mo on Starter, while Promptwatch's comparison says $35/mo. I could not verify either on the pricing page, so check before assuming.
- API access and SSO are Enterprise only.
Peec does include an ads library, AI shopping SKU tracking, prompt suggestions, personas and bulk import on every plan, and its sentiment scoring is often called the strongest in this price class. Its Pro plan is $245/mo for 150 prompts and 2 projects, and Advanced is $495 for 350 prompts and 5 projects.
Peec is a good fit when you have many stakeholders who need seats and you only care about three engines. It is less attractive if you want API access or full engine coverage at the entry price.
ZipTie: pay per check, and the 50-prompt math is the best
ZipTie works differently from the other three. There are no fixed prompt tiers. You build a plan from prompts, refresh cadence and engines, and it charges roughly $0.01 per prompt per engine per check, or about $0.0087 per check when you use all seven engines.
Seven engines are available: ChatGPT, Google AI Overviews, Perplexity, Google AI Mode, Copilot, Bing AI Overview and Gemini. Every engine costs the same, with no add-on engines. Seats, projects, competitors, exports, client reports and Search Console connections are never billed.
For 50 daily prompts, the numbers from third-party sources:
- Three engines: about $42.75/mo (the Starter preset in Geoptie's roundup).
- All seven engines: about $91.50/mo (Geoptie's estimate).
I did not run ZipTie's configurator myself, so treat those as estimates and rebuild the quote on their calculator. Presets start at $25.65 (Starter), $340.20 (Professional) and $1,647 (Enterprise), with quarterly, semi-annual and annual discounts of 5%, 10% and 20%.
Add-ons matter here. API and MCP access is $10/mo on a paid plan, content generation is $20/mo per context, and UGC impact analysis is an 80% uplift. The 7-day trial needs no card and gives 25 daily prompts on ChatGPT, AI Overviews and Copilot.
The useful trick: prompts are slots in pooled daily, weekly and monthly buckets. You could run 20 high-value prompts daily and 30 weekly, which would cost noticeably less than 50 daily. For a team whose needs vary by client or season, that flexibility is real.
The catch is the same as Otterly's and Peec's: ZipTie is a monitor. It tells you what happened. It does not plan or publish the fix.
Engine coverage side by side
| Engine | Promptwatch Essential | Otterly Lite | Peec Starter | ZipTie |
|---|---|---|---|---|
| ChatGPT | Included | Included | Pick 3 | Included |
| Google AI Overviews | Included | Included | Pick 3 | Included |
| Google AI Mode | Included | Add-on | Pick 3 | Included |
| Perplexity | Included | Included | Enterprise | Included |
| Gemini | Included | Add-on | Pick 3 | Included |
| Microsoft Copilot | Included | Included | Pick 3 | Included |
| Claude | Included | Add-on | Enterprise | Not listed |
A note on ZipTie and Claude: the research does not list Claude among its seven engines, so assume it is not covered. For a ChatGPT-focused budget this barely matters, but it does if your buyers use Claude.
Where the 50-prompt budget goes wrong
Single runs are noisy
AI answers change from run to run. One manual check proves little. This is most obvious with ads: Promptwatch Data's ChatGPT ads report found ads in 20.1% of citation-enabled ChatGPT responses that ran a web search (May 20 to Aug 17, 2026), with a daily peak of 43.9%. ChatGPT served no ads until May 27, so one run can land on an outlier day. Look at several days, not one result.
Weight the set toward organic prompts
In the same report, organic prompts were 73.3% of ad-bearing responses, brand-specific 18.0% and competitor comparison 8.6%. That reflects prompt volume, not how likely each type is to trigger an ad. Still, it suggests a sensible split of your 50: something like 30 to 35 organic category prompts, 8 to 10 competitor comparisons and 5 to 7 brand queries.
Do not count responses as the only quality measure
A tool with 9,000 responses on bad prompts is worse than one with 4,500 on good ones. Pick your prompts from real demand: search console queries, People Also Ask, sales call questions. Promptwatch's prompt volume and difficulty scoring helps here, and you can do a rougher version by hand with any of the tools above.
Which one should you buy?
| If you are... | Pick | Why |
|---|---|---|
| A solo marketer wanting 50 prompts and all engines, plus a path to fixing gaps | Promptwatch Essential | Every engine, API and MCP, content gap analysis, 6,000 responses |
| Testing the waters with 10 to 15 prompts | Otterly.AI Lite | $29, daily, unlimited seats |
| A team that needs unlimited users and only tracks ChatGPT plus Google surfaces | Peec AI Starter | Same $95 price, unlimited users, strong sentiment |
| Cost-sensitive with variable volume, happy with monitoring only | ZipTie | About $43 for 50 daily prompts on 3 engines, flexible cadence |
| Agency with many client brands | Otterly Standard or an agency plan | Unlimited brands on Otterly; Promptwatch agency plans start at $199 |
My honest read: if all you want is the lowest bill for 50 daily ChatGPT-ish prompts, ZipTie wins. If you want 50 prompts without engine caps and with a clear route from a visibility gap to a published fix, Promptwatch Essential is the better $95 than Peec Starter, mainly because of the 6,000 responses, all engines and API access. Otterly only makes sense here if your real list is closer to 15 prompts.
The SE Visible roundup above is another independent angle on the same field. It lists Ziptie as best for teams whose prompt volume varies by client, and Otterly for small prompt sets with ChatGPT ads in view.
Questions to ask before you pay
- Is the price quoted monthly or annual? Annual discounts are 15% on Otterly, 20% on ZipTie and roughly 17% on Promptwatch.
- Which engines are included at that price, and which cost extra?
- Does the tool collect from the real user interface or from an API?
- Can you export prompt-level responses and citations?
- Is API or MCP access included, or does it start at a higher plan?
- What happens when you want 60 or 80 prompts?
If you want to widen the shortlist, the AI rank tracker directory at ai-rank-tools.com lists dozens of other options, including some cheaper entry points.
Final word
None of these four is a bad purchase. They solve different problems. Otterly is the cheapest door, Peec is a tidy 50-prompt plan with a model cap, ZipTie is the cheapest per check, and Promptwatch is the one that gives you the most data per prompt and the shortest path from finding a gap to fixing it. Start a trial on two of them with the same 50 prompts for a week, and compare what you actually learn. Then check current pricing on each vendor's site, because every number above can change.