Time Calculator vs Cryptogram Cipher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time Calculator
This comprehensive toolkit helps manage time, dates, and schedules with various calculators. Track work hours, plan shifts, convert time formats, and calculate differences between dates. Ideal for professionals, freelancers, and everyday users needing precise time management.
- Work time tracking
- Shift scheduling
- Date difference calculation
- Countdown timers
- Time zone comparison
- Age calculation
- Time conversion
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Time Calculator is the ultimate all-in-one toolkit for managing time, dates, schedules, and more. Whether you’re tracking work hours, planning shifts, or converting time formats, this app has a calculator for every time-related need. Designed for professionals, freelancers, travellers, and everyday users alike. Included calculators: - Time Calculator Add or subtract hours, minutes, seconds, and days. Optionally apply an hourly rate for cost calculations. - Work Time Calculator Track working hours, salaries, and multiple jobs. Supports custom shifts and detailed breakdowns. - Shift Calculator Create and calculate rotating shift schedules with ease. - Date Calculator Find the difference between two dates in days, weeks, months, and years. - Time Difference Calculate the time between two clock times. - Countdown Set up countdown timers for upcoming events or deadlines. - Weekday Calculator Calculate how many weekdays and weekends are between two dates. - Add to Date Calculator Add days, weeks, months, or years to a starting date to see the resulting date. - Count Days Tap days on a calendar to count them - perfect for tracking Schengen or visa limits. - Days To/From Save countdown timers for any event and see how many days remain. - Add to Time Calculator Add hours and minutes to a specific time of day. - Age Calculator Add birthdays of friends and family to track their exact age. - Time Converter Convert between seconds, minutes, hours, and days. - Time Zone Calculator Add multiple time zones and compare times across regions. - Military Time Calculator Easily convert between 12-hour and 24-hour (military) formats. - Time to Decimal Convert standard time (like 2h 30m) to decimal format and back. --------------------------- Subscription terms: - The subscription auto-renews at the end of each term. - Payment will be charged to iTunes Account at confirmation of purchase. - The 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 prior to the end of the current period. - You may manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Privacy policy and Terms of Use: https://oval.fi/privacy-policy-time-calculator
Cryptogram Cipher
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Some messages belong between the two of you. A settlement proposal. A tip for an investigation. A conversation about health. Cryptogramm encrypts sensitive texts on your iPhone. You share the block of characters by chat or e-mail. FOR LAWYERS At an appointment in your office, you and your client set up your shared key. From then on, your client sends their view on a settlement as an encrypted block of characters by e-mail. You open it in Cryptogramm. FOR JOURNALISTS A source encrypts their tip before sending it. A short meeting point they leave on an agreed NFC sticker – with an expiry time, or readable only once on an NTAG 424 DNA. You can share locations in encrypted form too. FOR EVERYDAY LIFE You discuss your parents' care with your sister, or send your partner the access code for the holiday flat. Encrypt the text and share it over the channel you trust. Short notes you leave on an NFC sticker for later pickup. THE LOCKED NFC DEAD DROP Besides ordinary NFC stickers, Cryptogramm supports the NTAG 424 DNA. It releases its content only after authentication with the matching key. A stranger's phone does not even see the encrypted text there. The app sets up a new NTAG 424 DNA the first time you write to it, in the same tap. With a different key it stops without changing the tag. Resetting with the matching key wipes the tag completely and turns it back into an ordinary sticker. READABLE ONCE ONLY On the NTAG 424 DNA the chip itself enforces the single read: it counts the pickup and prevents the message from being opened again afterwards – even by you. Simply tapping it with a stranger's phone does not use up the single read. About 250 characters fit into an ordinary message, about 108 into one that is readable once only. The label and the sender take up part of that. The input field shows how much still fits. MESSAGES WITH AN EXPIRY TIME One hour, one day, one week, 30 days or an exact moment: you decide how long a message stays readable in the dead drop. The expiry time is encrypted along with it. Cryptogramm no longer shows expired messages and overwrites them when they are read. Can be combined with reading once only. SHARE AND BACK UP KEYS Hand over your shared key by QR code, AirDrop or link. The link opens Cryptogramm on the other iPhone and asks for the one-time code. Send that code separately, by a different route. The key passport backs up your key on a folded A5 card – also for a lost phone or an emergency wipe. Keep it in a safe: it is as valuable as the key itself. EMERGENCY WIPE AS A SHORTCUT Delete your local keys without confirmation and without opening the app: with the Action button, a double tap on the back of the phone or an automation. PRIVACY AND EU CHAT CONTROL The EU interim regulation allows certain providers, under conditions, to carry out voluntary checks to combat child sexual abuse. It applies until 3 April 2028; end-to-end encrypted communication is exempt. The permanent regulation is still being negotiated. As of October 2026. Optical paper codes can be copied by hand and read with the camera. Encrypting and decrypting also work in airplane mode. NO ACCOUNT. NO SUBSCRIPTION. Access with Face ID or the device passcode. Locally protected keys, fixed deletion deadlines, no provider servers, no ads, no tracking. Nine languages, now including Russian. GOOD TO KNOW Both of you need the app and the same key. Who communicates with whom and when remains visible to the messenger. A key obtained later can open older ordinary messages. Deliberately reading the tag with an NFC app can make a once-only message unreadable without decrypting it. Reading once only does not prevent copies at the moment of pickup. Without the key it was set up with, an NTAG 424 DNA stays locked for good. Buy once. Give what's private the protection it deserves.
Screenshots
Verdict
The clearest difference is price: Time Calculator at Free against Cryptogram Cipher's $3.99. Time Calculator also leads on device support (4 vs 1) and iOS requirement (15.0 vs 17.0). Cryptogram Cipher's advantage is in-app purchases (none vs 6). On 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
Time Calculator is free to download; Cryptogram Cipher costs $3.99 up front. Time Calculator sells 6 in-app purchases, starting at $2.99 per month. Cryptogram Cipher asks for nothing beyond the download.
Time Calculator ships an update every 2 weeks, Cryptogram Cipher weekly. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.
| Parameter | Time Calculator | Cryptogram Cipher |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.7 (2.9K ratings) — better | — |
| Positive reviews | 78.7% of reviews | — |
| Number of ratings | 2.9K — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 17 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Oval Software Oy | Robby Riedel |
Bugs and requests
Time Calculator
Reported bugs
5 issues- Unable to upgrade
- Calculator does not show hours, minutes and seconds. Only hour and minutes
- Seconds don't work on a TIME calculator!
- The last update is bad, it doesn't work!
- The settings doesn't work after the last update
Requested features
12 requests- Overtime calculator
- Decimals for time calculator
- Ability to delete entries
- Ability to edit or pick the days on the calendar
- Ability to have the work time calculator on Mac
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- Ability to calculate overtime including rate
- Ability to convert time to AM/PM
- Ability to display hours, minutes and seconds
- Ability to divide the number of hours by days of the month
- Ability to add multiple work shifts in a day
- Ability to keep record of hours and weekly hours worked
- Ability to add different pay rates for different types of work
Cryptogram Cipher
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Time Calculator
- Time Calculator Pro Monthly3 Days trial$2.991 Month
- Time Calculator Premium Monthl3 Days trial$3.991 Month
- Time Calculator Premium3 Days trial$14.991 Year
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- Time Calculator Premium3 Days trial$19.991 Year
- Time Calculator Premium$19.99
- Unlock all features$29.99
Cryptogram Cipher
No in-app purchases
Questions
Is Time Calculator free?
Is Cryptogram Cipher free?
Do Time Calculator or Cryptogram Cipher have ads?
Which is updated more often, Time Calculator or Cryptogram Cipher?
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