Comparison

Compound by The Blocks vs Happened

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

Head to head
About

Compound by The Blocks

Easily calculate the future growth of your savings using the power of compounding interest. This intuitive financial tool helps you visualize your wealth accumulation and make informed decisions for your financial future.

Highlights
  • Compound interest calculations
  • Savings growth projection
  • Intuitive user interface
  • Financial goal planning
  • Wealth building tool
Features
Read full description

Compound by The Blocks is a powerful financial tool that makes it easy to calculate the growth of your savings over time. Whether you're saving up for something big or planning for the future, Compound can help you see how much your money can grow with the power of compounding interest. With a simple and intuitive design, we hope that this will become your go-to utility for quick calculations. We believe that everyone deserves to have access to easy-to-use financial tools that can help them build wealth and achieve their financial goals. That's why we created Compound — to give you a simple and effective way to calculate the growth of your savings and start making smarter financial decisions. So whether you're just getting started with saving or you're a seasoned investor, give Compound a try and see how it can help you unlock the power of compounding growth.

About

Happened

Easily log life events with customizable tags and analyze them using various metrics. Track symptoms, hobbies, or any personal occurrence with a simple tap and visualize your data over time. The app prioritizes your privacy, storing data locally or in your iCloud.

Highlights
  • One-tap event logging
  • Four tag types: Valueless, Quantified, Balance, Binary
  • Timeline divided into five parts of the day
  • Drag and drop tag management
  • 10 types of visual metrics
  • Customizable time ranges for analytics
  • CloudKit data storage for privacy
Features
Read full description

This app was made for personal use, but it turned out too good to hide from the App Store. Log events happening in your life with one simple tap. Whether it’s symptoms, birdwatching, superstitions, you name it. Collect data and analyze it with metrics. Taxonomy The app supports four types of tags: - Valueless: Just to log events that happened. - Quantified: Each event has a numeric value. Users can also add a measurement unit. - Balance: Events have a visual gauge in the range of –1 to 1. Suitable for cases such as “better or worse than the baseline”. - Binary: Events have a true or false value, representing the outcome of an event. Timeline To speed up the creation and management of events, the day is divided into five parts. Tapping on a tag creates an event in the current part of today. Drag & drop tags to add events to any part of any day. Management Tags are categorized into groups, each with its own color. Add, edit and move your tags without losing associated events. Analytics The app offers 10 types of metrics to visually represent data, including counters, min/avg/max calculators, pie charts, linear graphs, and more. Each tag type has a specific set of metrics. Each metric can be limited by a time range: last week or the last one, three, six, or twelve months. Convenience - Gestures: swipe left and right on the timeline to navigate between days. Double-tap on the timeline returns to today’s view. - Swiping right on the Tag Groups stripe reveals a sandwich glyph (three horizontal lines). Dragging it vertically changes the height of the area with tags. - Change the order of Tag Groups and Metrics by holding and dragging them in the corresponding sections. - The plus glyph in the tag area on the home screen allows you to quickly add a new tag to the selected group. Privacy All your data is stored using the CloudKit framework provided by Apple. This means it’s either stored locally on the device or in your iCloud account. For encryption, opt into Advanced Data Protection in your iCloud settings (availability may vary by region). In any case, the developer DOES NOT have access to user data. The app DOES NOT use any analytics tools, so feel free to log your sensitive data. It stays only with you and no one else.

Screenshots

Compound by The Blocks4 screens
Happened4 screens

Verdict

The call

The clearest difference is rating: Compound by The Blocks at 5.0 against Happened's 3.0. Compound by The Blocks also leads on iOS requirement (13.0 vs 17.6). Happened's advantage is update cadence (monthly vs every 7 months). 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Compound by The Blocks holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Compound by The Blocks ships an update every 7 months, Happened monthly. The most recent releases landed on June 1, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
Compound by The Blocks versus Happened: the parameters behind the verdict, then further details
ParameterCompound by The BlocksHappened
PriceFreeFree
Rating5.0 (1 ratings) — better3.0 (2 ratings)
Positive reviews—0.0% of reviews
Number of ratings12 — better
Update frequencyEvery 7 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better17.6
Further details — not scored
Size7 MB2 MB
Age rating4+4+
DeveloperSeth MitchellPavel Shlyapnikov

Customer experience

Compound by The Blocks

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

Happened

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

In-app purchases

None

Compound by The Blocks

No in-app purchases

None

Happened

No in-app purchases

Questions

Is Compound by The Blocks free?
Compound by The Blocks is free to download, with no in-app purchases.
Is Happened free?
Happened is free to download, with no in-app purchases.
Which has better reviews, Compound by The Blocks or Happened?
Compound by The Blocks is rated higher. Compound by The Blocks averages 5.0 out of 5 from 1 ratings, while Happened averages 3.0 from 2 ratings.
Do Compound by The Blocks or Happened have ads?
Neither Compound by The Blocks nor Happened shows ads.
Which is updated more often, Compound by The Blocks or Happened?
Compound by The Blocks ships an update every 7 months, and Happened monthly. Most recently, Compound by The Blocks was updated on June 1, 2026 and Happened on September 18, 2026.

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