Comparison

Interval(x) vs Forge

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

Head to head
About

Interval(x)

An open-source interval timer designed for precision and privacy. Configure work and rest periods with millisecond accuracy for training or daily routines. It offers a transparent, data-free experience for users who value control and simplicity.

Highlights
  • Open Source Transparency
  • Zero Data Collection
  • Millisecond Interval Precision
  • Customizable Work/Rest Periods
  • Lightweight and Power-Efficient
  • Privacy-First Design
Features
Read full description

Interval(x): Open Source Precision for Engineers Engineered for precision and transparency, Interval(x) is the ultimate interval timer for those who value control, simplicity, and privacy. Built by engineers for engineers, this app delivers unmatched timing accuracy without the frills—or the data collection. Why Engineers Love Interval(x): Open Source: Fully transparent and modifiable—because we believe in community-driven development. Zero Data Collection: Your data is yours. Interval(x) operates without tracking, analytics, or unnecessary permissions. Customizable and Precise: Configure work/rest intervals down to the millisecond to match your exact training needs. Efficient Design: Lightweight, power-efficient, and designed for those who demand performance. Privacy-First, Community-Driven Interval(x) is a privacy-focused tool that doesn't track your activity or collect your data. Its open-source codebase is available for review and contributions, ensuring transparency and trust. Whether you're training for endurance, strength, or just optimizing your daily routine, Interval(x) provides the precision and simplicity you need without sacrificing your privacy. Download Interval(x) today and experience fitness on your terms. Power your workouts with open source freedom and engineering-grade accuracy.

About

Forge

This app offers structured self-improvement through guided practices inspired by Benjamin Franklin's methods. It provides multi-week guides focused on essential skills, decision-making, boundary setting, and more, helping users track their growth over time.

Highlights
  • Structured multi-week self-improvement guides
  • Virtue cultivation based on Benjamin Franklin's method
  • Track progress and celebrate growth
  • Guides for essential skills, decision-making, and boundaries
  • Local data storage for privacy
  • Optional biometric authentication
Features
Read full description

Continuous self-improvement through structured practice. The method of Forge Guides comes from Benjamin Franklin, one of the Founding Fathers of the United States, inventor, writer, and statesman who spent years faithfully working on his own character. He identified virtues he wanted to cultivate and worked through them in rotation, focusing on one at a time, week by week, and marking his failures rather than just his successes. Forge Guides is built around that same idea, updated for modern life and expanded into six structured multi-week guides you can work through at your own pace: - Essential Skills: Core foundations for personal growth, self-management, and meaningful relationships - Decision-Making Lens: A systematic way to work through a difficult decision - Boundary Setting: Learning to protect your time and energy with clarity and confidence - Recovery Fundamentals: Rebuilding your foundation step by step after setbacks, burnout, or difficult periods - Franklin's Original: Benjamin Franklin's personal 13 virtues in original 18th-century language - Practical Life Skills: Habits that build self-esteem and a more purposeful life CELEBRATE YOUR GROWTH OVER TIME Celebrate over time marking less and less while you progress in virtue, skill, and self-mastery. "I never arrived at the perfection I had been so ambitious of obtaining, but fell far short of it, yet I was, by the endeavour, a better and a happier man than I otherwise should have been if I had not attempted it." — Benjamin Franklin, Autobiography ** SECURITY & PRIVACY ** - Your data is stored locally and stays on your device. - Biometric authentication can be enabled to protect access to your app. ** SUBSCRIPTION & DONATION ** Subscribe to access Widget Studio or to support the app. Most features of the app are free, no subscription required. Widget Studio ~ Design your own personalized widget and track the virtue or skill of the week on your home screen. - Color palettes in light and dark mode - Selection of fonts, including modern, retro, handwritten, chalkboard, casual and formal styles - In-app live previews - Change your widget designs anytime Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24 hours before the end of the current period. Manage plans and turn off auto-renewal in Settings > Apple ID > Subscriptions. Privacy: https://startinjune-apps.github.io/forge-guides/privacy/ Terms: https://startinjune-apps.github.io/forge-guides/terms/

Screenshots

Interval(x)3 screens
Forge4 screens

Verdict

The call

The clearest difference is in-app purchases: Interval(x) at none against Forge's 2. Forge's advantage is ratings volume (4 vs 1). On price, rating, 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

Both are free to download. Forge sells 2 in-app purchases, starting at $5.99 per month. Interval(x) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Interval(x) against 5.0 for Forge. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

Interval(x) ships an update every 10 days, Forge weekly. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 6 level
Interval(x) versus Forge: the parameters behind the verdict, then further details
ParameterInterval(x)Forge
PriceFreeFree
Rating5.0 (1 ratings)5.0 (4 ratings)
Number of ratings14 — better
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS18.117.0 — better
Further details — not scored
Size2 MB19 MB
Age rating4+4+
DeveloperShapeHaven Innovations LLCStart in June LLC

Customer experience

Interval(x)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Forge

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Interval(x)

No in-app purchases

2 purchases

Forge

Subscriptions2
  • Monthly Plan$5.991 Month
  • Yearly Plan$39.991 Year

Questions

Is Interval(x) free?
Interval(x) is free to download, with no in-app purchases.
Is Forge free?
Forge is free to download, with in-app purchases available.
Which has better reviews, Interval(x) or Forge?
Interval(x) and Forge are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.
Do Interval(x) or Forge have ads?
Neither Interval(x) nor Forge shows ads.
Which is updated more often, Interval(x) or Forge?
Interval(x) ships an update every 10 days, and Forge weekly. Most recently, Interval(x) was updated on October 6, 2026 and Forge on October 1, 2026.

Other comparisons