Casters vs ThoughtsLeft
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Casters
This app transforms screen time management into a relaxing idle fishing game. Block distracting apps and earn in-game currency by focusing, which can be used to unlock cute companions and improve your fishing strategy.
- Idle fishing gameplay
- App blocking for focus
- Earn coins for focus time
- Unlockable animal companions
- Strategic fishing lineups
- Progress tracking and reports
- Gentle focus reminders
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Transform focus into a cozy fishing adventure with "Casters"! Struggling to put the phone down? Let’s go fishing instead. "Casters" combines Screen Time with a cozy idle fishing game to help you reduce screen time and develop your focus without the stress. HIGHLIGHTS RELAXING FOCUS No alarming buzzers. Just soothing nature and a line floating in the water. Start your session to cast your line. GUILT-FREE BLOCKING Block distracting apps while you focus. If you need to leave, simply reel in your line (but you might miss the big catch!). EARN WHILE YOU FOCUS Every fish you catch automatically converts to coins. The longer you focus, the more you earn. CUTE COMPANIONS Use your coins to unlock adorable animal casters to keep you company while you focus. STRATEGIC LINEUPS Different squads land different fish. Experiment with your team to find rare catches and earn faster. LO-FI AESTHETICS Beautiful, calming scenery that makes productivity feel like a break. PROGRESS REPORTS Visualize your fishing and focus stats per session, day, and week. Watch your progress grow. SMART REMINDERS Set a gentle reminder to return to your flow whenever you're ready. Ready to cast your line? Download Casters and make focus feel like a break. --- Terms of Use: https://casters-app.vercel.app/terms Privacy Policy: https://casters-app.vercel.app/privacy Customer Support: casters.customers@gmail.com
ThoughtsLeft
Capture your fleeting thoughts, ideas, and worries quickly through typing or voice. Organize them into tasks or notes, or simply let them go. Gain insights into your thinking patterns and maintain mental clarity.
- Instant thought capture (type or voice)
- Organize thoughts with swipe gestures
- Spoken Thought for hands-free capture
- Time-based task manager
- Notes repository
- Activity insights
- Optional Pro upgrade for advanced features
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ThoughtsLeft is a brain dump app for people who think too much: late-night spirals, half-finished ideas, worries you can't shake, things you're scared to forget. Get them all out fast, before the mental clutter takes over. Capture however it comes to you. Type it, or speak it out loud as a Spoken Thought. No structure required, no "right way" to do it. Just thought capture, fast. Then decide on your own time. Organize thoughts into a task, note or simply let them go completely with one swipe, because not every worry needs to become something. KEY FEATURES: • Instant thought capture for ideas, worries, and reminders • Capture from anywhere with the Action Button, Siri, or a Home Screen long-press • Swipe gestures to organize thoughts into tasks or notes • Spoken Thought for hands-free, voice-based capture • Batch processing sessions for inbox zero • Time-based task manager (Today, Tomorrow, This Week, Someday) • Notes repository for everything you want to keep • Activity insights into your thinking patterns • App lock with Face ID, or Touch ID • Dark and light themes • 100% private by default, all thoughts stay on your device (optional iCloud sync available) • Export all your thoughts or delete them anytime OPTIONAL PRO UPGRADE ThoughtsLeft works fully without upgrading. For deeper reflection, focus, and mental clarity, an optional PRO upgrade is available. Thought Timeline & History • View your complete thought history • See how thoughts become tasks, notes, or released items • Reflect on your thinking patterns over time Pattern Insights • Discover when your mind is loudest • Understand your overthinking habits Custom Scheduling • Set exact dates and times for tasks and get notified • Plan with more clarity and precision iCloud Sync • Keep your thoughts backed up and synced with iCloud • Your thoughts stay private, sync is always optional Apple Calendar Sync • Automatically sync your Thoughts Left tasks to your Apple Calendar • View your to-dos right alongside your daily events Premium Themes • Unlock 5 calming, nature-inspired themes • Personalise your space for reflection and focus Available as a one-time purchase or an annual subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Casters at 100% against ThoughtsLeft's 50%. Casters also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 2). ThoughtsLeft's advantage is iOS requirement (16.0 vs 18.0). On price, ratings volume, ads 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. ThoughtsLeft sells 2 in-app purchases, starting at $9.99 per year. Casters asks for nothing beyond the download.
Casters holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 100% of Casters's written reviews are positive against 50% of ThoughtsLeft's.
Casters ships an update every 4 days, ThoughtsLeft every 11 days. The most recent releases landed on July 18, 2026 and September 12, 2026 respectively.
| Parameter | Casters | ThoughtsLeft |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 5 — better | 2 |
| Update frequency | Every 4 days — better | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Sunder LLC | Jayasrinivasan Varadharajan |
Customer experience
Casters
ThoughtsLeft
In-app purchases
Casters
No in-app purchases
ThoughtsLeft
- Thoughts Left PRO7 Days trial$9.991 Year
- Thoughts Left Pro$24.99





