Comparison

TTimer vs CalcGate | App Lock with Math

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

Head to head
About

TTimer

Features
Read full description

It's important to know how much time you put into your day-to-day life in order to spend it meaningfully. TTimer allows you to keep track of how much time you spend on any task with a simple UI. Set your favorite tasks such as "Running", "Reading", "Studying", "Work", etc. and keep a record of your life. Functions of TTimer - Timer function to measure the time of a task - Customization of Tasks (add/delete) - List of results of task completion - CSV output of monthly results (export by email)

About

CalcGate | App Lock with Math

Features
Read full description

CalcGate is a screen time control app designed for people who want to break the habit of opening distracting apps without thinking. Have you ever opened social media “just for a minute,” only to lose track of time? Do you find yourself checking your phone when you should be studying, working, or focusing? Do app limits feel too easy to ignore or turn off? CalcGate adds a simple but effective moment of friction before you can reopen restricted apps. Choose the apps or app categories you want to limit, start a lock, and CalcGate will require you to solve math challenges before access can be restored early. Unlike blockers that can be dismissed instantly, CalcGate is designed to make you pause and ask yourself: “Do I really want to open this app right now?” To unlock early, every math problem must be answered correctly. If you make a mistake, your progress resets and the challenge starts again from the beginning. This small hurdle helps interrupt automatic habits like repeatedly opening social media, video apps, games, or other distractions without thinking. CalcGate is useful for study sessions, deep work, productivity, reading, reducing late-night scrolling, managing screen time, and building healthier digital routines. Key features: ・Restrict selected apps or app categories ・Start instant locks anytime ・Create recurring daily lock schedules ・Unlock early by solving math challenges ・Customize challenge difficulty and question count ・Reset progress after incorrect answers CalcGate is not about completely avoiding your phone. It is about using your phone more intentionally. Whether you want to improve focus, study without distractions, reduce social media overuse, build better habits, or create a healthier relationship with your device, CalcGate helps you pause before you tap. Start using CalcGate today and build the habit of thinking before unlocking.

Screenshots

TTimer3 screens
CalcGate | App Lock with Math4 screens

Verdict

The call

The clearest difference is update cadence: TTimer at every 5 days against CalcGate | App Lock with Math's every 3 weeks. TTimer also leads on iOS requirement (13.0 vs 26.2). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TTimer ships an update every 5 days, CalcGate | App Lock with Math every 3 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 4 level
TTimer versus CalcGate | App Lock with Math: the parameters behind the verdict, then further details
ParameterTTimerCalcGate | App Lock with Math
PriceFreeFree
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better26.2
Further details — not scored
Size19 MB4 MB
Age rating4+4+
Developerakira morookaHIDEYUKI INAGAKI

In-app purchases

None

TTimer

No in-app purchases

None

CalcGate | App Lock with Math

No in-app purchases

Questions

Is TTimer free?
TTimer is free to download, with no in-app purchases.
Is CalcGate | App Lock with Math free?
CalcGate | App Lock with Math is free to download, with no in-app purchases.
Do TTimer or CalcGate | App Lock with Math have ads?
Neither TTimer nor CalcGate | App Lock with Math shows ads.
Which is updated more often, TTimer or CalcGate | App Lock with Math?
TTimer ships an update every 5 days, and CalcGate | App Lock with Math every 3 weeks. Most recently, TTimer was updated on October 3, 2026 and CalcGate | App Lock with Math on October 10, 2026.

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