Comparison

Fithacker vs Siela

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Fithacker

Features
Read full description

Fithacker helps you get all the exercise your body needs for long-term fitness, strength and mobility.

About

Siela

Features
Read full description

Organize your day without juggling five separate apps. Siela brings your calendar, daily routines, notes, and optional cycle tracking into one calm, private space. It is built for women who want structure without pressure -- and cycle awareness without turning life into a medical dashboard. YOUR DAY, BEAUTIFULLY ORGANIZED See everything that matters on one screen: today's routines, upcoming events, cycle phase, and recent notes. No clutter, no noise -- just a clear view of your day. BUILD ROUTINES THAT ACTUALLY STICK Create morning, evening, or custom routines and check them off at your own pace. Siela never punishes you for missing a day. There are no streaks to break, no guilt notifications -- just a gentle system that welcomes you back every time. FLOW DAYS: CELEBRATE YOUR CONSISTENCY Complete 70% or more of your routines and watch your Flow Days grow. A rolling 7-day window tracks your momentum with a blooming flower visual -- a quiet celebration of showing up for yourself, not a punishment for falling behind. OPTIONAL CYCLE AWARENESS Track your cycle when it helps you. Hide it when it does not. Siela shows your current phase, predicted next period, and cycle length trends based on your own data. No overwhelming charts, no clinical language -- just awareness that fits naturally into your day. CALENDAR AND NOTES, TOGETHER Plan events in a clean calendar view and attach notes to any day. Keep thoughts, reflections, and reminders close to the moment they belong to. PRIVATE BY DESIGN Every piece of data stays on your device. There is no cloud sync, no account wall, no data collection. Your routines, your cycle, your notes -- they belong to you and only you. WHY SIELA FEELS DIFFERENT - One app replaces five: planner, habit tracker, cycle tracker, calendar, and notes - Private by design: all data stays on your device - No account required -- open the app and start - Czech and English from day one - Designed for daily life, not productivity guilt - Calm, elegant interface that feels like a personal journal IMPORTANT: Siela is a personal awareness and planning tool. It does not provide medical advice, diagnoses, or treatment recommendations. Cycle predictions are estimates based on your logged data and should not be used for medical decisions. Always consult a healthcare professional for medical concerns.

Screenshots

Fithacker4 screens
Siela4 screens

Verdict

The call

Fithacker and Siela are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Fithacker versus Siela: the parameters behind the verdict, then further details
ParameterFithackerSiela
PriceFreeFree
Update frequencyEvery 4 daysEvery 4 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS15.1 β€” better15.6
Further details β€” not scored
Size33 MB69 MB
Age rating4+12+
DeveloperPETER MATTHEW DAVISTomas Sekera

In-app purchases

None

Fithacker

No in-app purchases

None

Siela

No in-app purchases

Questions

Is Fithacker free?
Fithacker is free to download, with no in-app purchases.
Is Siela free?
Siela is free to download, with no in-app purchases.
Do Fithacker or Siela have ads?
Neither Fithacker nor Siela shows ads.
Which is updated more often, Fithacker or Siela?
Fithacker ships an update every 4 days, and Siela every 4 days. Most recently, Fithacker was updated on October 27, 2026 and Siela on October 31, 2026.

Other comparisons