Comparison

Rytek vs No Sugar Diary

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

Head to head
About

Rytek

Log your weightlifting sessions, track progress, and analyze your performance with this offline-first strength training journal. Create custom plans or follow popular routines, and review personal records and training readiness. Share workout summaries or export your data.

Highlights
  • Log weight, reps, RPE, and sets
  • Create and run custom workout plans
  • Track exercise progress and PRs
  • Review volume, consistency, and readiness
  • Generate workout recap cards
  • Export training data and local backups
Features
Read full description

Rytek is a local-first strength training log for recording workouts, following a plan, and reviewing progress over time. What you can do: • Log weight, reps, RPE, warm-up sets, and completion • Create and run 5x5, PPL, upper/lower, full-body, or custom plans • Start planned workout days from Today and track exercise progress • Review PRs, estimated 1RM, volume, consistency, and Training Readiness • See plan completions, skipped exercises, and extra work • Create workout recap cards to save or share • Export training data and use local backup and sync tools Core workout logging works offline, without a social feed or leaderboard. Pro is a one-time purchase, not a subscription. It unlocks multiple plans, plan copying, detailed plan stats, data export, local backups, and sync. Privacy Policy: https://rytek.naxs.top/privacy-policy Terms of Use: https://rytek.naxs.top/terms-of-use

About

No Sugar Diary

This habit journal helps you track and reduce any urge or habit you want to change, from food cravings to screen time. Record your progress, feelings, and successes to stay consistent and regain control over your lifestyle choices.

Highlights
  • Customizable habit labeling
  • Daily progress tracking
  • Streak and total count monitoring
  • Journal entries with text, image, and voice
  • Shareable progress cards
  • Optional offline AI companion
  • Apple Watch data sync
Features
Read full description

No Sugar Diary is a habit journal app that helps you record change and stay consistent. Here, "sugar" does not have to mean only food. It can also stand for any urge or habit you want to reduce, resist, or gradually quit. You can give it your own label, such as sugar, milk tea, staying up late, scrolling, gaming, or anything else you want to regain control over. You can use it to: - Create your own habit label - Record whether you stayed on track each day - Track streaks and total counts - Write down your feelings and changes - Look back on your progress over time - Generate shareable cards for each step forward - Add text, image, and voice entries - Optionally enable local offline AI companion replies - Sync selected progress data with Apple Watch No Sugar Diary is more like a personal record of staying with yourself. It helps you notice urges, track fluctuations, and keep every small success and every fresh start. Great for tracking: - Quitting sugar - Drinking less milk tea - Snacking less - Staying up less late - Spending less time scrolling - Playing fewer games - Any lifestyle habit you want to change gradually Notes: - This app is for personal habit tracking, self-observation, and daily encouragement. It does not provide medical diagnosis, treatment advice, or professional health guidance. - Your diary entries and records stay on your device by default. If you enable local offline AI, replies and generation are designed to run on your device whenever possible. - The AI feature requires decent device performance. It is only supported on iPhone 13 or newer, and iPad Pro, iPad Air, iPad mini, and iPad released in 2021 or later with at least 6GB of RAM. Not available on older devices. AI responses are for encouragement and light support only and are not medical, nutrition, or other professional advice.

Screenshots

Rytek4 screens
No Sugar Diary4 screens

Verdict

The call

The clearest difference is price: Rytek at Free against No Sugar Diary's $0.99. No Sugar Diary's advantage is in-app purchases (none vs 1) and device support (4 vs 1). On update cadence and ads 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

Rytek is free to download; No Sugar Diary costs $0.99 up front. Rytek sells 1 one-off in-app purchase. No Sugar Diary asks for nothing beyond the download.

UpkeepUpdate frequency

Rytek ships an update weekly, No Sugar Diary every 9 days. Both last shipped on November 5, 2026.

Scorecard5 real differences · 5 level
Rytek versus No Sugar Diary: the parameters behind the verdict, then further details
ParameterRytekNo Sugar Diary
PriceFree — better$0.99
Rating3.0 (2 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings2 — better—
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.0 — better
Further details — not scored
Size73 MB483 MB
Age rating4+12+
Developer文超 李林蓉 李

Customer experience

Rytek

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

No Sugar Diary

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Rytek

One-time1
  • Pro (Lifetime)$8.99
None

No Sugar Diary

No in-app purchases

Questions

Is Rytek free?
Rytek is free to download, with in-app purchases available.
Is No Sugar Diary free?
No Sugar Diary costs $0.99, with no in-app purchases.
Do Rytek or No Sugar Diary have ads?
Neither Rytek nor No Sugar Diary shows ads.
Which is updated more often, Rytek or No Sugar Diary?
Rytek ships an update weekly, and No Sugar Diary every 9 days. Most recently, Rytek was updated on November 5, 2026 and No Sugar Diary on November 5, 2026.

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