Flexibility Trainer vs Runcalcs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flexibility Trainer
Achieve your flexibility goals with a 30-day program designed for beginners. This app uses active and passive stretching techniques to improve hamstring, thigh, and hip flexibility, promoting better blood circulation. Sessions are designed to be completed in just ten minutes daily.
- 30-day flexibility program
- Active and passive stretching
- Improves hamstring, thigh, hip flexibility
- Promotes blood circulation
- Beginner-friendly
- 10-minute daily sessions
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This 30-day program will help you increase your flexibility. The program utilises a mixture of active and passive stretching techniques to give you the fastest gains possible in the shortest time. While working on the splits you not only improve the flexibility of hamstrings, thighs, and hips but also promote better blood circulation to the areas most affected by the sedentary lifestyle. This guide will cover ways to increase flexibility in just ten minutes per day. But here’s the trick: you have to commit to stretching. Stay as consistent with a stretching routine as you would with a fitness routine or diet program. Our programs are especially designed for complete beginners, so take all the time you need in reaching your goal. Even if you are a bit more advanced, make sure you complete the warm up and each step daily to keep yourself injury free.
Runcalcs
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8 unique calculators for runners at any level. Whether you’re building a training plan, dialling in easy-day pace, or checking zones before intervals, RunCalcs makes the numbers simple and reliable. Features at a glance Pacing - Pace calculator - Splits planner Racing - Predictive race time calculator Training - Running cadence calculator - Heart-rate training zones - VO2 Max Calculator Health - Recovery time calculator - BMI calculator Thoughtful defaults & inline validation Works offline Run smarter - with the numbers that matter.
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Verdict
The clearest difference is in-app purchases: Runcalcs at none against Flexibility Trainer's 10. Runcalcs also leads on ads (none vs shown). Flexibility Trainer's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence 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. Flexibility Trainer sells 10 one-off in-app purchases. Runcalcs asks for nothing beyond the download.
Flexibility Trainer ships an update every 3 months, Runcalcs every 2 months. The most recent releases landed on November 13, 2026 and November 8, 2026 respectively.
| Parameter | Flexibility Trainer | Runcalcs |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (73 ratings) — better | — |
| Positive reviews | 64.3% of reviews | — |
| Number of ratings | 73 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 44 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Samantha Roobol | John Templeton |
In-app purchases
Flexibility Trainer
- Remove ads$0.99
- Exercises for beginners$1.99
- Yoga Poses for Flexibility$1.99
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- Middle Split in 30 Days$1.99
- Improve Upper Body Flexibility$1.99
- Learn the Splits in 60 Days$1.99
- The 30 Day Splits Challenge$1.99
- How to Do a Scorpion Stretch$1.99
- Core and Flexibility Workouts$1.99
- Full Bundle$4.99
Runcalcs
No in-app purchases
Questions
Is Flexibility Trainer free?
Is Runcalcs free?
Do Flexibility Trainer or Runcalcs have ads?
Which is updated more often, Flexibility Trainer or Runcalcs?
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