SolTi vs Plank Timer
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SolTi
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SolTi is a workout timer, interval timer, and Tabata timer rolled into one clean app - built for people who train alone, with a voice that counts you in. Timing rest between sets at the gym, running a home workout in your living room, holding a plank you refuse to drop - whenever your workout needs a timer, SolTi has you covered. You know that gap between hitting Start and actually getting into position? Those lost seconds eat into every set. SolTi fills the gap with a Prep countdown: press Start, get on the mat, settle into your form - and when the voice hits "3, 2, 1," your work time begins exactly on cue. - A voice that coaches you through - A spoken 3-2-1 countdown before every start - get ready by ear, not by staring at a screen - "Go" the moment work begins - put the phone down and focus on your body - A heads-up every time a rest phase starts, so you always know where you are in the interval - A cheer when you finish - because the last rep deserves one - Vibration alerts for every phase change - perfect when the gym music is loud or the house is asleep - Toggle sound and vibration separately in Settings No more squinting at the screen mid-plank. No more grabbing your phone between burpees. SolTi tells you everything you need to hear - even with the screen off. - Prep and Work, one unbroken flow - Prep time and work time run as a single sequence - the seconds you spend getting into position are part of the plan - The Prep countdown rolls straight into work automatically - no extra tap - Pause, resume, or end early with big one-handed buttons - The timer runs with the screen off; a notification marks each phase change and the finish - Your go-to workouts, saved as cards - "Plank 2:00," "Rest 90s," "Squats 0:45" - save the timers you use most as cards - Next time, one tap starts the whole thing - no re-dialing the same numbers every day - Pick any color for every card with the color slider - Tabata and HIIT intervals - Run work / rest intervals across multiple sets, all on one screen - 20 seconds on, 10 seconds off, 8 rounds - the classic 4-minute Tabata is one card away - Build full-body circuits - burpees into mountain climbers into jumping jacks - with custom times per set - HIIT keeps timing in the background even with the screen off - Every workout logged, automatically - When the timer ends, the session saves itself - no extra tap - Today's bar - your day's training laid out in color across the top of Home - Weekly and monthly charts, plus a history list grouped by date - Totals at a glance: time, sessions, average, and streak days - Built to keep you coming back - Level card - 5 tiers from Rookie to Master, earned with total training time - 9 achievement badges to collect, one milestone at a time - Workout heatmap - your last 12 weeks of intensity in color (Pro) - When to reach for SolTi - At the gym - timing rest between sets, interval training - At home - roll out the mat and let the Prep countdown set the pace - Morning stretch or yoga - a set time for every pose - Plank challenge - log how long you last, every single day - The 4-minute Tabata - short, brutal, done - Free and Pro Free includes: - Up to 3 regular timer cards - 1 HIIT timer - Full workout history, stats, levels, and badges Your card list starts empty - tap Create and build your own. Ads stay out of the way of your training. Pro unlocks: - Unlimited regular timer cards - Unlimited HIIT timers - No ads - The 12-week workout heatmap - Home screen widgets - tap a preset on your home screen to start instantly (small, medium, large) Pricing shows automatically in your local currency - see the final price on the purchase screen. - Monthly subscription - Yearly subscription (better value) Whatever you train and wherever you train it, SolTi keeps the time - out loud. Contact: junu.ceo@gmail.com Privacy policy: https://www.junu.co.kr/terms/solti/privacy/ Terms of use (EULA): https://www.junu.co.kr/terms/solti/eula/
Plank Timer
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A plank timer that calls out every second for you. Set the hold, put the phone down, and let the voice, the 3-2-1 beeps and the haptic buzz tell you exactly when to brace, when you're halfway, and when you're done. Most people quit the plank early because they keep peeking at a stopwatch. This app takes the screen out of the equation: a full-screen countdown ring, spoken "Hold" and "Rest" cues, a halfway alert to keep your core tight, and a get-set countdown before every set. Then it logs the hold, grows your streak, and pushes the next target a little higher. WHAT YOU GET - Hold longer without watching the clock: voice cues, countdown beeps and haptics carry you through every second - Never wonder what comes next: multi-set core routines that chain forearm, high, side and reverse planks with timed rest between holds - A month-long plan that actually ramps: the 30-Day Plank Challenge takes you from a 20-second hold to a 5-minute hold, rest days included - Proof you are getting stronger: streak, longest hold, total core minutes, weekly total and a 7 / 14 / 30-day chart of core seconds per day - A level that climbs with you, from Core Rookie to Plank Master, so 40 honest seconds today still counts - Form you can trust: plain-English guides on plank technique, the four variations, the mistakes that kill results, and how to train safely PERFECT FOR - Beginners who can barely hold 20 seconds and want a plan, not a stopwatch - Anyone chasing a personal best on the forearm plank - Desk workers building core strength for posture and a happier lower back - Home and travel training with zero equipment and zero setup WHY NOT JUST USE THE STOPWATCH APP? A stopwatch makes you stare at your phone in the exact position where lifting your head wrecks your form. This one speaks. It counts you in, warns you at the halfway mark, beeps the last three seconds, buzzes when a set flips to rest, keeps the screen awake, and then writes the hold into your history so tomorrow's target is based on something real. A stopwatch forgets you the second you stop it. PRIVACY Every hold, streak and setting stays on your iPhone. No account, no sign-up, no ads, no tracking, no cloud upload. The whole app works offline, on a plane or in a basement gym. FULL ACCESS The full app opens with a membership: all four plank variations, all four multi-set routines, the 30-Day Plank Challenge and the 14-Day Core Reset, the custom-duration timer, your full history, and the charts and trends in Progress. Choose weekly, yearly, or a one-time lifetime unlock that never renews. Weekly and yearly renew automatically unless cancelled at least 24 hours before the period ends; manage or cancel anytime in your App Store account settings. Restore Purchases is in Settings. Start with a 30-second forearm plank today and let the timer talk you through the rest. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? Email tphuc.work@gmail.com
Screenshots
Verdict
The clearest difference is ads: Plank Timer at none against SolTi's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. SolTi sells 2 in-app purchases, starting at $0.99 per month and Plank Timer sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
SolTi ships an update monthly, Plank Timer every 6 weeks. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.
| Parameter | SolTi | Plank Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly β better | Every 6 weeks |
| Ads | Yes | No β better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 17.0 β better |
| Further details β not scored | ||
| Size | 10 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Jinyoung Lee | Phuc Pham |
In-app purchases
SolTi
- SolTi Pro Monthly$0.991 Month
- SolTi Pro Yearly$9.991 Year
Plank Timer
- Weekly$2.997 Days
- Yearly$14.991 Year









