Comparison

Inertium Habit Tracker vs Task Optimist

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

Head to head
About

Inertium Habit Tracker

Track daily habits with a simple, elegant interface. Log notes, sync across devices, and monitor your progress. This open-source app prioritizes privacy and offers a focused, ad-free experience.

Highlights
  • Daily habit tracking
  • Note-taking
  • Cross-device sync
  • Progress logging
  • Elegant UI
  • Open-source
Features
Read full description

Inertium app lets you track your daily habits (e.g. Meditation, Lifts, Cardio) in simple and elegant User Interface. Take notes, sync across devices and keep a log of your progress. Fully functional, 100% test covered and privacy-first, Inertium is an open-source mobile app that "does one thing and does it well.". Inertium is, and will always remain free of ads or paid-features.

About

Task Optimist

Features
Read full description

Task Optimist is a different but powerful and simple project management tool. You input your tasks, deadlines, times and priorities. Task Optimist intelligently curates your agenda. If something takes longer than expected, Task Optimist automatically reschedules your remaining tasks. If a new task comes in, Task Optimist finds the best place for it in your schedule. If a deadline changes, Task Optimist adjusts your plan accordingly. Key features: Smart Scheduling – Tasks are automatically placed into your calendar so you never miss a deadline. Gantt Charts – Visualise your projects with dependencies, milestones, and progress tracking. Flexible Task Management – Create, edit, and organise tasks and priorities. Dependencies – Link tasks together so your workflow follows real-world order. Clean macOS Experience – Designed for focus and productivity on your Mac. Task Optimist is built for makers, freelancers, and teams who want to get more done without drowning in complexity. It gives you clarity, focus, and the peace of mind that your schedule is always optimised.

Screenshots

Inertium Habit Tracker4 screens
Task Optimist3 screens

Verdict

The call

The clearest difference is update cadence: Inertium Habit Tracker at weekly against Task Optimist's monthly. 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Inertium Habit Tracker ships an update weekly, Task Optimist monthly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Inertium Habit Tracker versus Task Optimist: the parameters behind the verdict, then further details
ParameterInertium Habit TrackerTask Optimist
PriceFreeFree
Rating5.0 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.1 — better15.6
Further details — not scored
Size32 MB46 MB
Age rating4+4+
DeveloperMonad Engineering LtdAdrian Hill

In-app purchases

None

Inertium Habit Tracker

No in-app purchases

None

Task Optimist

No in-app purchases

Questions

Is Inertium Habit Tracker free?
Inertium Habit Tracker is free to download, with no in-app purchases.
Is Task Optimist free?
Task Optimist is free to download, with no in-app purchases.
Do Inertium Habit Tracker or Task Optimist have ads?
Neither Inertium Habit Tracker nor Task Optimist shows ads.
Which is updated more often, Inertium Habit Tracker or Task Optimist?
Inertium Habit Tracker ships an update weekly, and Task Optimist monthly. Most recently, Inertium Habit Tracker was updated on October 29, 2026 and Task Optimist on October 24, 2026.

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