TheosGym vs PulseCaller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TheosGym
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Entdecke die neue Möglichkeit deine TheosGym Mitgliedschaft schnell und unkompliziert zu verwalten. Was du alles mit der App machen kannst: - Persönliche Daten ändern - per QR-Code einchecken - Zahlungshistorie einsehen - Dauerhaften Zugriff auf deine wichtigsten Dokumente - Trainingshistorie - Vertragsdaten ändern - Beiträge verwalten - und vieles mehr...
PulseCaller
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PulseCaller is a run coach for your ears. It tells you during your run whether to speed up or slow down – by heart-rate zone or by pace, in a natural AI coach voice instead of a robot voice. Just tap Start and go. The moment you leave your zone or pace corridor, you hear it right in your ear – even with the screen locked and alongside your music. HOW YOUR HEART RATE GETS TO THE APP • AirPods Pro (2nd/3rd generation): live heart rate in your ear, no chest strap or watch needed • Bluetooth chest strap or Garmin "Broadcast HR": connected directly • Apple Watch and other sources via Apple Health • Pulse-free mode: no sensor? The app also works as a quiet run tracker with pace announcements FREE • Live heart rate with voice coaching and the AI coach voice • Pace training: a pace corridor with grade-adjusted target pace • Free run, zone and interval training with phase and progress announcements • Zone calculator (%HRmax or Karvonen), workout history, route map with pace heatmap, elevation profile • One training plan and Live Activity on the lock screen • Runs are saved to Apple Health including the route – so they reach Strava too WITH PULSECALLER PRO • Cycle & readiness tracking: a daily score from your cycle phase and training load tells you how hard to train today • Race mode for half marathon and marathon: pace cues, splits, fueling reminders and post-race analysis • All training plans and individually generated plans • Coach personalities: Hype, Rival, Race Commentator, Roast and more • Cooper test with estimated VO2max • Nutrition around training, a supplement library with evidence ratings, meditation & rest days • Music in your running cadence – song suggestions matched to your step rate • Knowledge library with articles on training and running ailments • Friends: share workouts with people you choose • Apple Watch app, Siri Shortcuts and custom voice packs Free 7-day trial, then 9.99 € per year or a one-time 24.99 € for lifetime access. No ads, no tracking, no sharing with third parties. Your training data stays on your device – only if you use the Friends feature are selected workouts shared through your iCloud. Note: PulseCaller is not a medical device and does not replace medical advice. Requires iPhone with iOS 26 or later. For live heart rate: AirPods Pro (2nd or 3rd generation) or a Bluetooth chest strap. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tobiaserkel.github.io/pulsecaller-website/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: TheosGym at none against PulseCaller's 2. TheosGym also leads on iOS requirement (12.2 vs 26.0). PulseCaller's advantage is update cadence (every 9 days vs every 10 months) and device support. On price 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. PulseCaller sells 2 in-app purchases, starting at $8.99 per year. TheosGym asks for nothing beyond the download.
TheosGym ships an update every 10 months, PulseCaller every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | TheosGym | PulseCaller |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 9 days — better |
| Ads | — | No |
| In-app purchases | No — better | Yes |
| Devices | — | iPhone, Apple Watch — better |
| Requires iOS | 12.2 — better | 26.0 |
| Further details — not scored | ||
| Size | 77 MB | 257 MB |
| Age rating | 4+ | 12+ |
| Developer | Themisoft GmbH | Tobias Christian Erkel |
In-app purchases
TheosGym
No in-app purchases
PulseCaller
- PulseCaller Pro Yearly7 Days trial$8.991 Year
- PulseCaller Pro – Forever$22.99









