Comparison

IronDojo vs BIO3

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

Head to head
About

IronDojo

Log gym workouts with detailed sets, reps, and weights, and track your progress with strength graphs and PR history. Connect with your local fitness community, compete in weekly challenges, and stay motivated with friends through workout feeds and private groups.

Highlights
  • Detailed workout logging (sets, reps, weights)
  • Custom routine creation
  • Progress tracking with strength graphs
  • Social workout feeds and community interaction
  • Gym and friend leaderboards
  • Weekly competitions
Read full description

Meet IronDojo, the social workout tracker! Whether you’re training solo or lifting alongside friends, IronDojo helps you log workouts, stay accountable, and compete with your gym community. Join leaderboards, track progress, and keep your fitness goals on point — all completely for free. SOON TO COME: – Automatic logging with your voice – AI personal trainer in your ear – Streaks + goals – Advanced analytics + AI suggestions – Challenges with prizes WORKOUT TRACKING: – Log gym workouts with detailed sets, reps, weights, and rest timers – Create reusable custom routines for easy workout logging – Autofill set data based on your past workouts – Track progress with strength graphs and PR history – Use One Rep Max estimation tools to plan sets and see your projected lifts – Create your own exercises for free – Minimize or expand sets, reorder exercises, and see a snapshot of your current workout’s volume SOCIAL & COMPETITION: – Join your local gym to connect to your local fitness community – Compete in weekly competitions – See workout feeds from your gym, friends, or the global community – Like, comment, and support each other’s progress – Create private groups to track and stay motivated with friends – Customize who sees your workouts: Public, Friends, Gym, or Private LEADERBOARDS: – Join gym-wide or friends-only leaderboards – Filter leaderboards by exercise or group to keep things relevant CALENDAR & ACCOUNTABILITY: – Stay consistent with a weekly workout calendar showing all your stats – Compare activity with friends and gym members – View your all-time calendar displaying every workout logged BUILT TO MOTIVATE: – Completely free with no paywall – Track your journey privately or build a fitness community – Designed for everyone from beginners to elite athletes

About

BIO3

This app helps Dartmouth College BIO3 students track their mindfulness practice. Log meditation sessions, monitor progress, and view course leaderboard standings. It prioritizes user privacy with secure data storage and opt-in research participation.

Highlights
  • Log meditation sessions (duration, quality, stress)
  • Track group practice participation
  • Monitor personal progress
  • View course leaderboard
  • Access mindfulness resources
  • Secure data storage
Features
Read full description

BIO3 is a mindfulness tracking app developed by the Media and Health Lab at Dartmouth College, designed exclusively for students enrolled in the BIO3 course. WHAT YOU CAN DO: - Log daily meditation sessions including duration, quality ratings, and stress levels - Track your group practice participation records - Monitor your personal progress over time - View your standing on the course leaderboard - Access curated resources to support your mindfulness practice PRIVACY FIRST: Your data is stored securely and is never sold or shared with third parties. Students who choose to participate in research do so through a separate opt-in process. All research data is anonymized and used only for academic publications by the MHBLD Lab at Dartmouth College. Developed by the Media and Health Lab (MHBLD) at Dartmouth College.

Screenshots

IronDojo4 screens
BIO34 screens

Verdict

The call

The clearest difference is update cadence: BIO3 at every 2 days against IronDojo's fortnightly. IronDojo's advantage is ratings volume (6 vs 2). On price, rating, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for IronDojo against 5.0 for BIO3. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

UpkeepUpdate frequency

IronDojo ships an update fortnightly, BIO3 every 2 days. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
IronDojo versus BIO3: the parameters behind the verdict, then further details
ParameterIronDojoBIO3
PriceFreeFree
Rating5.0 (6 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings6 — better2
Update frequencyFortnightlyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad — better
Requires iOS17.2 — better18.5
Further details — not scored
Size94 MB4 MB
Age rating4+4+
DeveloperRyan PontesYashaswini Rajendra Bhat

In-app purchases

None

IronDojo

No in-app purchases

None

BIO3

No in-app purchases

Questions

Is IronDojo free?
IronDojo is free to download, with no in-app purchases.
Is BIO3 free?
BIO3 is free to download, with no in-app purchases.
Which has better reviews, IronDojo or BIO3?
IronDojo and BIO3 are both rated 5.0 out of 5 on the App Store, from 6 and 2 ratings respectively.
Do IronDojo or BIO3 have ads?
Neither IronDojo nor BIO3 shows ads.
Which is updated more often, IronDojo or BIO3?
IronDojo ships an update fortnightly, and BIO3 every 2 days. Most recently, IronDojo was updated on October 5, 2026 and BIO3 on October 16, 2026.

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