Sistens vs I'm Doing It
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Sistens
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Sistens enables users to submit two pictures which we then use to create your BioStructural Analysis report. The purpose of the analysis is to look for structural deviations of the body so we can recommend corrective techniques & exercises.ย BioStructural deviations have been shown to lead to degenerative disc disease (DDD) and/or osteoarthritis (OA) of the spine. Correcting these deviations helps prevent DDD & OA from occurring and improves overall health, performance, spinal hygiene, and well-being.
I'm Doing It
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Forming or keeping up with new healthy habits is extremely hard, but the solution is very easy. For the first couple of days you feel motivated and it is easy but each day it gets harder and the 21 days people used to tell you you need to form a habit feels unreachable. 21 days is way too lofty of a goal, luckily theres a better way. "I'm Doing It" helps you actually form new habits. It does this by keeping it simple, you make 3 goals a day, but you don't have to achieve them all. Nobody is perfect it does not make sense to feel shame if you don't accomplish all of your goals every day. With I'm Doing It your goal is only to complete 2 of the goals a day. This is the secret to forming habits.
Screenshots
Verdict
The clearest difference is ads: I'm Doing It at none against Sistens's shown. I'm Doing It also leads on update cadence (every 5 weeks vs every 28 months) and iOS requirement (12.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sistens ships an update every 28 months, I'm Doing It every 5 weeks. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | Sistens | I'm Doing It |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 28 months | Every 5 weeks โ better |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 โ better |
| Further details โ not scored | ||
| Size | 43 MB | 24 MB |
| Age rating | 12+ | 4+ |
| Developer | KenneTech LLC | Maurice Landers III |
In-app purchases
Sistens
No in-app purchases
I'm Doing It
No in-app purchases
Questions
Is Sistens free?
Is I'm Doing It free?
Do Sistens or I'm Doing It have ads?
Which is updated more often, Sistens or I'm Doing It?
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