COSTFA vs Study Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COSTFA
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COSTFA is a Two Factor Authentication (2FA) solution that employs mobile devices, instead of tokens. What's more, with industry leading feature set and secure Out-of-Band authentication, we stand apart from the competition. This App will be used only by end users of one of our Client organization spread across the globe. The purpose of this App is to carry out two factor authentication during login of Web applications deployed in Client Data centre. Users should be registered in the web application and this app will only do second factor authentication. App can register with the Web application only when they are within the organization network. There are no paid content in this app.
Study Timer
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A fun study timer for better focus and productivity! Focus Fish is a cute study timer that helps you stay focused while turning your study time into a fun little fishing game! Designed in a cozy pixel art style, this focus keeper rewards your study sessions with an adorable fishing game! Stay focused and productive for longer to catch more fish! Whether you're doing homework, reading, or working on a project, Focus Fish makes your screen a place of productivity, not distraction. It’s a study focus tool, helping you stay engaged in whatever productive task you're working on, without the urge to reach for your phone. When you start a study timer session, your fishing rod is cast! Make sure you stay focused, or you'll lose any chance you had of catching a fish! Why Focus Fish? - Acts as a calming focus keeper for your study sessions - Fun game timer that rewards productivity with cute fish - Helps you avoid distractions and stop reaching for your phone - Designed with charming pixel art to keep things cozy and motivating - Works great as a productivity timer for school, creative work, or quiet time Focus Fish makes tracking your focus and study sessions more rewarding than ever. Browse your complete fish collection gallery to see every fish you’ve reeled in during your focus and study sessions, turning your studying efforts into a colorful display of pixel-art trophies. Set a weekly focus goal, just specify how many minutes of focused study or timer for studying sessions you want to complete each week, and let the app’s built-in focus timer keep you motivated and on track toward meeting your study targets. Our focus sessions overview gives you instant insights into your most recent timer blocks. Whether you’re using our for deep focus, or to help you study, you’ll see session lengths, fish caught, and progress toward your weekly focus goal all in one place. Keep your productivity levels high with this powerful combo of fun fishing gameplay and purpose-built study timers. Whether you’re a student needing a study timer, someone trying to stay off your phone, or just looking for a more enjoyable way to focus, Focus Fish is the cute timer you’ve been waiting for! It’s fun, simple, and motivating! Use our focus timer to power through tasks, to help you divide your study sessions, to track your focused hours to see how longer you've studied for! Start catching fish, meeting your weekly focus goal, and reviewing your recent sessions today - stay focused and productive, one fun fishing session at a time! Focus Fish helps you stay present and get things done. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use: https://impey.dev/policies/focusfish-terms Privacy Policy: https://impey.dev/policies/focusfish-privacy/
Screenshots
Verdict
The clearest difference is ads: COSTFA at none against Study Timer's shown. Study Timer's advantage is update cadence (every 2 days vs every 11 months). On price, in-app purchases, device support 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. Neither carries in-app purchases, so what you see is what you pay.
COSTFA ships an update every 11 months, Study Timer every 2 days. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.
| Parameter | COSTFA | Study Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 9 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Calibsoft Technologies | Ryan Impey |
In-app purchases
COSTFA
No in-app purchases
Study Timer
No in-app purchases









