First05 vs chek
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
First05
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First05 is a simple focus timer app designed to help you start with just five minutes. When motivation feels low or getting started feels difficult, First05 helps you take a smaller first step. Start a focus session, track your time, and review your recent focus activity in a clear and simple way. Main features: โข Start a focus session quickly โข Track your daily focus time โข Review your recent focus history โข View simple analysis based on your records โข Check your session status from the Lock Screen with Live Activities โข No account required โข No ads โข Focus records are stored on your device First05 is made for people who want to start without pressure and gradually build a better focus flow.
chek
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Most habit apps turn one missed day into a broken streak. chek doesn't keep score. Mark what you did, see what you've built up, and get on with your day. chek stays simple on purpose: add a habit, tap it done, and watch the pattern build in a calendar and a heatmap. That's the whole app. TODAY โ One tap marks a habit done, a second tap clears it โ Add a value when it matters: minutes meditated, pages read โ Skip a day without it counting against you โ Mark yesterday from the same screen if you forgot HISTORY โ A month calendar that fills in as your days do โ A heatmap for every habit, side by side, so you can compare them โ Totals for the week, the month or the year REMINDERS โ A quiet nudge at the time you choose, only on days the habit is scheduled โ Already logged it? The reminder stays silent โ Several habits at the same time arrive as one notification PRIVATE BY DEFAULT Everything stays on your phone. There is no account, no sign-in and no ads. Export a backup file whenever you like and import it on a new phone. Settings covers the basics: week start, backup, reminders, and a different app icon if you want one. chek PRO A one-time purchase, not a subscription. Free includes logging, skips, history, reminders and backup for up to five habits. Pro removes the limit and includes every Pro feature added later. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://apps.tmkm.dev/chek/privacy For anyone who wants a simple way to keep a few habits going.
Screenshots
Verdict
The clearest difference is in-app purchases: First05 at none against chek's 1. First05 also leads on update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. chek sells 1 one-off in-app purchase. First05 asks for nothing beyond the download.
First05 ships an update every 2 days, chek every 2 weeks. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.
| Parameter | First05 | chek |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days โ better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 17.6 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Rapro | Tomash Sugint |
In-app purchases
First05
No in-app purchases
chek
- chek Pro: Lifetime$9.99









