1SecPlank vs 30 Tage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1SecPlank
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1SecPlank is the simplest challenge in the world: every day, hold your plank 1 second longer than yesterday. The app measures your max, then increases your goal by just one second each day. That's it. HOW IT WORKS • Start the timer and hold your plank • Each successful day = +1 second tomorrow • Build a streak and never let go FEATURES • Timer with visual and audio countdown • Daily streak with streak freeze • Detailed progress and statistics • Levels to unlock • Customizable daily reminder WHY IT WORKS The secret is minimal progression. 1 second seems like nothing — and that's exactly why it works. No excuses, no burnout.
30 Tage
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Can you complete the 30-day plank challenge? The plank (forearm plank) is one of the most effective exercises for your torso, back, and core. With this app, you'll train daily according to a structured 30-day plan – from a few seconds to several minutes. ... **How it works:** • Open the app and select today • Press Start – the countdown begins • Voice prompts remind you of the remaining time • Soothing background music accompanies your workout • After your workout, the day is marked as complete **Features:** • 30-day training plan with increasing duration • Audio prompts in German (original sounds from the 2015 app) • Gentle background music (volume adjustable) • Clear progress grid – see at a glance how far you've come • Built-in rest days • No account, no login, no ads • Works offline **Proper form:** Elbows directly under your shoulders. Legs straight, like in a push-up. Squeeze your glutes. Keep your body straight – from head to heels. Don't forget to breathe! Ready for the challenge? Let's go! ########## A quick note about the plank itself: Your elbows should be directly under your shoulders. Your legs should be straight, like in a push-up. Engage your glutes (gluteus maximus). Hold this position. Don't forget to breathe.
Screenshots
Verdict
The clearest difference is update cadence: 30 Tage at every 6 days against 1SecPlank's every 3 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
1SecPlank ships an update every 3 months, 30 Tage every 6 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | 1SecPlank | 30 Tage |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 42 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Pierre | Michael Palmer |
In-app purchases
1SecPlank
No in-app purchases
30 Tage
No in-app purchases
Questions
Is 1SecPlank free?
Is 30 Tage free?
Do 1SecPlank or 30 Tage have ads?
Which is updated more often, 1SecPlank or 30 Tage?
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