OmniPlan 4 vs atrophy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OmniPlan 4
This app offers robust project management capabilities, allowing users to view, edit, and organize complex projects. It provides tools for tracking progress, managing teams, and improving workflows with features like automatic scheduling and critical path highlighting.
- Automatic project scheduling
- Resource leveling
- Team collaboration
- Critical path highlighting
- Interactive Gantt timeline
- Network diagram view
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OmniPlan gives you the power to manage complexity by helping you view, edit, and organize projects. Easily track your progress, manage your team, and continuously improve your processes with powerful project management features including automatic project scheduling, resource leveling, collaboration, milestones, and critical path highlighting. View your project as an interactive Gantt timeline, a customizable project outline, or as a beautiful Network diagram. Manage simple or complex projects—all at a glance. Purchase OmniPlan once for full access to OmniPlan 4 on your Mac, iPad, iPhone, and Apple Vision Pro.
atrophy
This app helps you assess how much you rely on AI for judgment. It offers offline diagnostic quizzes to identify AI-generated content, verify claims, and gauge your confidence. Results are presented as a calibration score and a shareable card.
- Offline diagnostic quizzes
- AI content identification
- Claim verification
- Confidence gauging
- Calibration score
- Shareable result card
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Atrophy is a short diagnostic that measures how much of your judgment you've handed to LLMs. It runs entirely offline. No accounts, no servers, no analytics, no third-party SDKs. Everything stays on your device. WHAT IT DOES - A focused calibration quiz: spot AI slop, verify weak claims, explain back what you read, gauge confidence. - A calibration score with a plain-language reading of where you're solid and where you're drifting. - A shareable result card you can save to Photos. WHAT IT DOESN'T DO - No tracking. No advertising IDs. No ATT prompt — there's nothing to track. - No content rented from a server. The drills ship in the app. - No social graph, no leaderboard, no streaks. ATROPHY PRO (Optional Subscription) Unlocks the Practice Pack — additional drills for ongoing calibration. - Monthly: $4.99 / month - Annual: $49.99 / year Subscriptions auto-renew until canceled. Cancel anytime in your Apple ID settings (Settings → Apple ID → Subscriptions). Account is charged for renewal within 24 hours prior to the end of the current period. Payment is charged to your Apple ID account at confirmation of purchase. Privacy policy: https://atrophy-ai.github.io/privacy.html Terms of use: https://atrophy-ai.github.io/terms.html
Screenshots
Verdict
The clearest difference is update cadence: atrophy at every 5 days against OmniPlan 4's every 2 months. atrophy also leads on monetization model (freemium vs paid). OmniPlan 4's advantage is rating (3.9 vs 3.7) and ratings volume (20 vs 3). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OmniPlan 4 sells 10 in-app purchases, starting at $19.99 per month and atrophy sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
OmniPlan 4 holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: OmniPlan 4 has 20 ratings behind it against 3, so its average is the more settled of the two.
OmniPlan 4 ships an update every 2 months, atrophy every 5 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.
| Parameter | OmniPlan 4 | atrophy |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (20 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 23.5% of reviews | — |
| Number of ratings | 20 — better | 3 |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 68 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | The Omni Group | Graham Annett |
Customer experience
OmniPlan 4
atrophy
In-app purchases
OmniPlan 4
- Legacy Subscription$19.991 Month
- Legacy Subscription$199.991 Year
- Free Upgrade to v4 ProFree
- Free Upgrade to v4 StandardFree
- Upgrade to v4 Standard$99.99
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- Upgrade from Standard to Pro$99.99
- Unlock Standard$199.99
- Upgrade to v4 Pro$199.99
- Upgrade from Standard to Pro$199.99
- Unlock Pro$399.99
atrophy
- Atrophy Monthly$4.991 Month
- Atrophy Yearly$49.991 Year









