Comparison

Circuit Cellar vs Habit Diary!

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

Head to head
About

Circuit Cellar

Access in-depth engineering tutorials, microcontroller projects, and industry news for electrical engineers and electronics enthusiasts. Explore topics like embedded development, signal processing, and IoT. Subscriptions are available within the app.

Highlights
  • Engineering tutorials
  • Microcontroller projects
  • Embedded systems news
  • Signal processing articles
  • IoT project guides
  • Robotics content
Features
Read full description

Circuit Cellar magazine features engineering tutorials, detailed microcontroller-based projects, and embedded systems industry news for professional electrical engineers, EE/ECE academics, and highly skilled electronics enthusiasts. Since 1988, Circuit Cellar has featured projects and tutorials from the world's top engineers on subjects such as embedded development (e.g., prototyping and programming), signal processing (e.g., DSP chips and signal conditioning), programmable logic (e.g., FPGA projects), sensor systems (e.g., smart sensors and MEMS), 'Net-connected devices (e.g., IoT projects and protocol stacks), robotics (e.g., robotic systems and proximity sensing), and much more. Circuit Cellar is the ultimate resource for all of your electrical engineering-related needs. Magazine Subscriptions are available for purchase inside this app. Three months subscription - $24.99 (automatically renewed until canceled) Six months subscription - $39.99 (automatically renewed until canceled) One year subscription - $34.99 (automatically renewed until canceled) Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your iTunes account will automatically be charged at the same price for renewal within 24-hours prior to the end of the current period unless you change your subscription preferences in your account settings. You can manage your subscriptions through your account settings after purchase on your device. No cancellation of the current subscription is allowed during active subscription period. Please visit http://www.magzter.com/ns/privacy-policy.html for our Privacy Policy and http://www.magzter.com/ns/terms_condition.html for our Terms & Conditions

About

Habit Diary!

Features
Read full description

Track your progress with Habit Diary! Check your continuous progress of the activities you want to monitor, with a simple, colorful, and graphical interface, in three simple steps: 1. Select your habits. 2. Record the habits you have completed. 3. Review your progress. And that's it!

Screenshots

Circuit Cellar4 screens
Habit Diary!4 screens

Verdict

The call

The clearest difference is in-app purchases: Habit Diary! at none against Circuit Cellar's 10. Habit Diary! also leads on update cadence (daily vs every 16 months). Circuit Cellar's advantage is iOS requirement (11.0 vs 13.4). On price, ads 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. Circuit Cellar sells 10 in-app purchases, starting at $23.99 per year. Habit Diary! asks for nothing beyond the download.

UpkeepUpdate frequency

Circuit Cellar ships an update every 16 months, Habit Diary! daily. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 7 level
Circuit Cellar versus Habit Diary!: the parameters behind the verdict, then further details
ParameterCircuit CellarHabit Diary!
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 16 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.4
Further details — not scored
Size33 MB23 MB
Age rating4+4+
DeveloperMagzter Inc.Adrian Palacios

In-app purchases

10 purchases

Circuit Cellar

Subscriptions2
  • Circuit Cellar 30$23.991 Year
  • Circuit Cellar 1 Year$34.991 Year
One-time8
  • Circuit Cellar - December 2016$8.99
  • Circuit Cellar - November 2016$8.99
  • Circuit Cellar - January 2017$8.99
Show 5 more
  • Circuit Cellar - July 2017$8.99
  • December 2017$8.99
  • July 2018$8.99
  • March 2018$8.99
  • Circuit Cellar November 2018$8.99
None

Habit Diary!

No in-app purchases

Questions

Is Circuit Cellar free?
Circuit Cellar is free to download, with in-app purchases available.
Is Habit Diary! free?
Habit Diary! is free to download, with no in-app purchases.
Do Circuit Cellar or Habit Diary! have ads?
Neither Circuit Cellar nor Habit Diary! shows ads.
Which is updated more often, Circuit Cellar or Habit Diary!?
Circuit Cellar ships an update every 16 months, and Habit Diary! daily. Most recently, Circuit Cellar was updated on October 16, 2026 and Habit Diary! on October 3, 2026.

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