Comparison

Grind75 vs 75 Sustainable

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

Head to head
About

Grind75

This app helps you build discipline and stay consistent with self-improvement challenges like 75 Hard or 75 Soft. It offers flexible tracking for various habits, multiple challenge modes, and progress visualization to support your personal growth journey without rigid rules.

Highlights
  • Customizable challenge lengths
  • Multiple challenge modes (Hard, Medium, Soft, Parent)
  • Habit tracking for fitness, water, reading, diet, and more
  • Progress photo and milestone tracking
  • Flexible system with pause and resume options
  • Health integration for step tracking
  • Shareable transformation cards
Features
Read full description

Grind75 is a flexible habit tracker and challenge tracker designed to help you complete 75 Hard, 75 Soft, or any custom self-improvement challenge. Build discipline, stay consistent, and track your daily habits—without rigid rules or burnout. Whether you're working on fitness, routine building, or personal growth, Grind75 adapts to your lifestyle. Start Any Challenge Choose from 21, 30, 60, 75, or 100-day challenges—or create your own custom challenge tailored to your goals. Build routines that work for you. Multiple Challenge Modes ● Hard Mode – for strict 75 Hard-style discipline ● Medium Mode – balanced and structured ● Soft Mode – sustainable and flexible habits ● Parent Mode – designed for busy parents Parent Mode – Built for Real Life Stay consistent while balancing responsibilities: ● Realistic daily goals ● Grace days ● Audiobook-friendly reading ● Quiet-time tracking Habit Tracker for Daily Consistency Track habits like: ● Workouts & fitness ● Water intake (with reminders) ● Reading (books or audiobooks) ● Diet & nutrition ● Outdoor activity ● Daily steps (Health integration) ● Custom habits Stay accountable, build streaks, and improve every day. Track Progress & Transformation ● Capture progress photos ● Compare before & after results ● Track milestones throughout your challenge ● View past challenges with stats and insights Stay Motivated ● Generate shareable transformation cards ● Completion recognition screen for finished challenges ● Celebrate wins and milestones ● Stay consistent through your journey Flexible & Forgiving System Missed a day? Keep going. ● Restart anytime ● Pause, stop, or resume your challenge ● Focus on progress over perfection Smart Features That Make It Easy ● Browse 21 ready-made tasks across 6 categories ● Add, edit, delete, or reorder tasks ● Swipe to manage your habits ● Automatic step tracking with Health integration ● Set multiple water reminders ● Localized water units (oz / mL) No Subscriptions. No Ads. Grind75 keeps it simple: ● Start free ● Unlock everything with a one-time purchase ● No ads ● No subscriptions ● Just results Why Grind75? ● Perfect for 75 Hard & 75 Soft challenges ● Flexible habit tracking system ● Designed for real-life consistency ● Built for discipline without burnout Your challenge. Your rules. Let’s grind.

About

75 Sustainable

Features
Read full description

A 75-day challenge you can actually finish. Five things a day: the workout, the protein, the calories, the water, and three lines of gratitude. That's the whole app. ONE PAGE PER DAY Open it, tick the workout, type three numbers, write three lines. Every change saves itself — there is no save button to forget. TARGETS, NOT JUST NUMBERS Protein and water fill toward a floor you set. Calories fill toward a ceiling you shouldn't cross (or a floor, if you're bulking — your call). Each band is its own meter: the fill is the progress. THE CARD Seventy-five tiles, fifteen across. Each day's tile fills from the bottom by how many of the five landed. A missed day stays a gap — it does not reset your count. Consistency beats perfection. SUSTAINABLE ON PURPOSE No two-a-days, no starting over on day 41, no progress-photo shame. Set targets you can keep for seventy-five days, then keep them. REMINDERS, YOUR WAY Add as many daily reminders as you like — a morning nudge, a mid-day water check, an evening close-out. Each has its own label and time. SHARE THE CARD One tap renders your card as a clean story-sized image, ready to post. YOURS, FULL STOP Free. No account, no subscription, no ads, no analytics, no servers. Your log is one file on your phone, and you can export or restore it any time. Ounces or millilitres, your pick. Yesterday is editable. The future is not. Day one is whenever you say it is.

Screenshots

Grind754 screens
75 Sustainable4 screens

Verdict

The call

The clearest difference is update cadence: 75 Sustainable at every 2 weeks against Grind75'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

Grind75 ships an update monthly, 75 Sustainable every 2 weeks. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 9 level
Grind75 versus 75 Sustainable: the parameters behind the verdict, then further details
ParameterGrind7575 Sustainable
PriceFreeFree
Rating5.0 (54 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings54 — better—
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size21 MB1 MB
Age rating4+4+
DeveloperPriya Pappachen Yohannancalbo, LLC

In-app purchases

None

Grind75

No in-app purchases

None

75 Sustainable

No in-app purchases

Questions

Is Grind75 free?
Grind75 is free to download, with no in-app purchases.
Is 75 Sustainable free?
75 Sustainable is free to download, with no in-app purchases.
Do Grind75 or 75 Sustainable have ads?
Neither Grind75 nor 75 Sustainable shows ads.
Which is updated more often, Grind75 or 75 Sustainable?
Grind75 ships an update monthly, and 75 Sustainable every 2 weeks. Most recently, Grind75 was updated on October 24, 2026 and 75 Sustainable on October 16, 2026.

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