Compressor HP vs OneTodo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Compressor HP
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Calculate hermetic compressor size (Horse power or watts). Just enter electric data and click or tap calculate button to see the compressor power.
OneTodo
Organize your life with a hierarchical task management system. Create tasks, pages, projects, boxes, and spaces to structure your to-do list and plans. Track project progress and manage separate data spaces for different aspects of your life.
- Hierarchical task organization (Task > Page > Project > Box > Space)
- Create standalone tasks
- Use pages as project subtitles
- Track project completion progress
- Group projects with boxes
- Separate data spaces for internal accounts
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Your Personal Task System. The Todo Application In The New Era Task -> Page -> Project -> Box -> Space # Todo/Task - add a to-do to your project or box. - tasks can also stand on their own. # Page - add a page to list your to-do plan. - you could use page as project’s subtitle. # Project - add a goal, plan, list as one project. - projects can show completion progress. # Box - add a box to group projects. # Space - stores a separate data space. - as the internal account system of OneTodo. OneTodo offers auto-renewable subscriptions. - Available plans, durations, and localized prices are shown on the purchase screen. Prices may vary by country or region. - Payment will be charged to your Apple Account when you confirm the purchase. - The subscription renews automatically unless you turn off auto-renew at least 24 hours before the end of the current period. - Your Apple Account will be charged for renewal within 24 hours before the end of the current period. - You can manage or cancel subscriptions in your App Store account settings after purchase. - Any unused portion of a free trial, if offered, will be forfeited when you purchase a subscription. Privacy Policy: https://docs.onenice.tech/#/OneTodo/privacy Terms of Service: https://docs.onenice.tech/#/OneTodo/terms Contact us: hi@onenice.tech Twitter: @OneTodoApp
Screenshots
Verdict
The clearest difference is update cadence: OneTodo at every 9 days against Compressor HP's every 4 months. Compressor HP's advantage is iOS requirement (14.4 vs 17.6). On price, ads, in-app purchases and device support 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. Compressor HP sells 3 one-off in-app purchases and OneTodo sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Compressor HP ships an update every 4 months, OneTodo every 9 days. The most recent releases landed on October 6, 2026 and September 26, 2026 respectively.
| Parameter | Compressor HP | OneTodo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.3 (3 ratings) — better |
| Positive reviews | — | 71.4% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 140 MB |
| Age rating | 4+ | 4+ |
| Developer | Melchisedec Martinez Rodriguez | Chengdu Reinvent Technology Co., Ltd. |
In-app purchases
Compressor HP
- Unlock capacitor size$0.99
- Unlock compressors type$2.99
- Unlock all refrigerants$2.99
OneTodo
- OneTodo Pro (Monthly)$0.991 Month
- OneTodo Pro (Yearly)$6.991 Year
- OneTodo Pro (Lifetime)$14.99
