Comparison

chapter lock vs Tether

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

Head to head
About

chapter lock

This app helps you read more by blocking distracting applications until you meet your reading goals. Set custom reading targets, track your progress, and build a consistent daily habit of turning screen time into reading time.

Highlights
  • App blocking for social media and games
  • Flexible reading goals (pages or time)
  • Reading habit building
  • Streak tracking for consistency
  • Reading insights and progress tracking
  • In-app library for tracking books
Features
Read full description

chapter lock become the reader you keep saying you want to be “a reader lives a thousand lives before he dies” - George R.R. Martin how to use chapter lock: 1. choose which apps to block 2. set your reading goal 3. read a specific number of pages, or for a set number of minutes 4. unlock your apps and move on with your day feeling refreshed if you want to read more and scroll less, chapter lock helps you get there with a simple rule: before you open distracting apps, you read. we aren’t another complicated reading tracker. we help you turn wasted screen time into reading time, build a real daily habit, and finally make progress on the books you keep meaning to finish. what’s inside - app blocking for instagram, tiktok, reddit, youtube, games, and more - flexible goals: one chapter, a specific page count, or a timed reading session - a library for tracking what you’re reading - streaks that show your consistency growing - reading insights that help you see your progress good for - building a daily reading habit - reducing screen time without deleting every app - finishing the books already on your shelf - replacing doomscrolling with something you actually want if you have ideas or questions, send us an email at [hi@chapterlock.com](mailto:hi@chapterlock.com)! *note: all app blocking, reading tracking, streaks, and insights require an active subscription.* no features available without one. terms: https://chapterlock.com/legal/terms privacy policy: https://chapterlock.com/legal/privacy

About

Tether

This visual planner helps individuals with ADHD manage their day using time blocks instead of endless lists. It breaks down tasks, tracks energy levels, and offers a focus timer to improve concentration. Premium features include voice capture, schedule suggestions, and calendar synchronization.

Highlights
  • Visual time blocks for daily planning
  • Task breakdown into smaller steps
  • Energy level tracking for tasks
  • Full-screen focus timer with background sound
  • Apple Calendar synchronization
  • Voice task capture
Features
Read full description

Feel overwhelmed by everything you need to do? Tether is a visual planner built for ADHD and easily overwhelmed minds. Instead of endless to-do lists, you see your day as simple blocks of time — and make progress one step at a time. SEE YOUR DAY • Visual time blocks — your whole day at a glance, not a bottomless list • Drag to reschedule — move things around without friction or guilt • Energy tracking — learn which tasks drain you and which recharge you • Apple Calendar sync — meetings and tasks on one timeline GET UNSTUCK • Turn overwhelming tasks into tiny, doable steps • Add tasks just by speaking, in your own words • Get gentle schedule suggestions when you don't know where to start (Optional — only when you need extra help.) FOCUS BETTER • A full-screen focus timer with calming background sound • A gentle nudge when you've lost track of time • A lock-screen Live Activity so you always know what's next • 7 themes to make it feel like yours Every task has an energy level, from draining to recharging. Tether shows your weekly and monthly balance so you understand why some days feel impossible — and plan the hard things for when you actually have energy. TETHER PREMIUM Unlock voice capture, task breakdown, schedule suggestions, themes, advanced energy insights, and calendar sync. Choose monthly, yearly, or a one-time lifetime purchase. Download Tether free. Start where you are. Build momentum one block at a time. Tether offers monthly and yearly subscriptions, plus a one-time lifetime purchase. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://tether-web-cyan.vercel.app/terms.html Privacy Policy: https://tether-web-cyan.vercel.app/privacy.html

Screenshots

chapter lock4 screens
Tether4 screens

Verdict

The call

The clearest difference is review sentiment: Tether at 100% against chapter lock's 0%. Tether also leads on rating (5.0 vs 3.5) and monetization model (free with in-app purchases vs subscription). chapter lock's advantage is update cadence (every 2 days vs weekly). On price, ratings volume, 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. chapter lock sells 2 in-app purchases, starting at $6.99 per 7 days and Tether sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Tether holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of chapter lock's written reviews are positive against 100% of Tether's.

UpkeepUpdate frequency

chapter lock ships an update every 2 days, Tether weekly. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

Scorecard4 real differences · 6 level
chapter lock versus Tether: the parameters behind the verdict, then further details
Parameterchapter lockTether
PriceFreeFree
Rating3.5 (2 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings22
Update frequencyEvery 2 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better18
Further details — not scored
Size25 MB43 MB
Age rating4+4+
DeveloperCaccamedia LLCSanket Ray

Customer experience

chapter lock

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Tether

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

chapter lock

Subscriptions2
  • pro (weekly)$6.997 Days
  • pro (yearly)3 Days trial$49.991 Year
6 purchases

Tether

Subscriptions4
  • Tether Plus$2.991 Month
  • Tether Premium$7.991 Month
  • Tether Plus$29.991 Year
Show 1 more
  • Tether Premium$44.991 Year
One-time2
  • Tether Plus$49.99
  • Tether Premium$124.99

Questions

Is chapter lock free?
chapter lock is free to download, with in-app purchases available.
Is Tether free?
Tether is free to download, with in-app purchases available.
Which has better reviews, chapter lock or Tether?
Tether is rated higher. chapter lock averages 3.5 out of 5 from 2 ratings, while Tether averages 5.0 from 2 ratings.
Do chapter lock or Tether have ads?
Neither chapter lock nor Tether shows ads.
Which is updated more often, chapter lock or Tether?
chapter lock ships an update every 2 days, and Tether weekly. Most recently, chapter lock was updated on October 31, 2026 and Tether on November 1, 2026.

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