AbsTrainingCounter vs Voidspace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AbsTrainingCounter
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Crush your core goals with ease! This app is your personal companion for consistent abdominal training. ■ Accurate Auto-Counting Just wear your Apple Watch on your left wrist and cross your arms over your chest. Our motion sensor technology automatically tracks every sit-up. Note: Correct posture is required for accurate sensing. ■ Level Up Your Fitness Start small and grow big. As you hit your targets, the goals get tougher. Stay motivated and outpace your past self! ■ Stay on Track All workout data is stored locally on your device. Review your progress whenever you need a boost of motivation. ■ Health Integration Sync with the Apple Health app to log your heart rate, workout duration, and calories burned. Plus, monitor your heart rate and energy burn in real-time right on your wrist! About Subscriptions Please refer to the following for terms and conditions regarding subscription use. 1. Privacy Policy: https://abs-training-counter-legal.pages.dev/privacy/ 2. Terms of Use: https://abs-training-counter-legal.pages.dev/terms/
Voidspace
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Voidspace is a simple, immersive app for breathing and meditation. Particle visuals that drift like deep space, paired with sound that follows your breath. As the session unfolds, the visuals shift slowly, creating time to turn your attention toward your own breathing. ■ Three breathing methods ▷ Natural breathing (inhale 4 seconds, exhale 6 seconds) The simplest breathing rhythm. For everyday relaxation, or a quiet moment before sleep. ▷ Box breathing (4-4-4-4) An even cycle of inhale, hold, exhale, hold. For when you want to focus, or settle your mind. ▷ 4-7-8 breathing (inhale 4, hold 7, exhale 8) A deep relaxation breath that activates the parasympathetic nervous system. Effective before bed, or when stress feels intense. ■ Session length Choose 1, 3, or 5 minutes, or unlimited. Review your practice with session history and a calendar heatmap. ■ Sound and haptics that follow your breath A synthesized drone shifts with your breathing. In standard sessions, you can enable 40 Hz amplitude modulation. On iPhone, haptics mark each phase change. With Voidspace Plus, you also get a haptic tick every second, and a double tap at each transition. ■ Voidspace Plus — one-time purchase Sleep mode moves from the breathing guide into ambient sound—space, rain, or waves—and fades out gently at the end of your chosen time. Choose 15, 30, or 60 minutes. A black screen and per-second haptic guidance during breathing are also included. Sleep mode and the black screen work while the app stays open. Locking the screen or switching to another app will pause the session. When a session ends, screen wake is released, and the display turns off according to your iPhone Auto-Lock setting. ■ Privacy first No account. No analytics. No ads. Your data stays on your device. ■ Japanese and English The app follows your device language automatically. You can also switch languages manually in the app. — Breathing is access to your own stillness, anytime, anywhere. Voidspace is a quiet space for that.
Screenshots
Verdict
The clearest difference is price: Voidspace at Free against AbsTrainingCounter's $2.99. Voidspace also leads on iOS requirement (15.0 vs 26.0). AbsTrainingCounter's advantage is update cadence (every 3 days vs every 2 weeks). On 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
Voidspace is free to download; AbsTrainingCounter costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AbsTrainingCounter ships an update every 3 days, Voidspace every 2 weeks. The most recent releases landed on October 8, 2026 and October 22, 2026 respectively.
| Parameter | AbsTrainingCounter | Voidspace |
|---|---|---|
| Price | $2.99 | Free — better |
| Update frequency | Every 3 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Yu Akiyama | Kunihiko Ayuha |
In-app purchases
AbsTrainingCounter
No in-app purchases
Voidspace
No in-app purchases









