Comparison

Telegraph vs Sudo Encrypt

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

Head to head
About

Telegraph

Learn and practice Morse code through engaging games. Explore various themed scenes to test your knowledge and recall the historical significance of this communication system. A fun way to master the international Morse code alphabet.

Highlights
  • Morse code learning games
  • Themed play scenes
  • International Morse code chart
  • Historical communication practice
  • Fun and engaging gameplay
Features
Read full description

HOW TO MEMORIZE MORSE CODE AND HAVE FUN? EASY ANSWER:BY PLAYING GAMES. LET’S PLAY TELEGRAPH AND RECOLLECT THE GOOD OLD DAYS! YOU CAN CHOOSE DIFFERENT SCENES TO PLAY WITH, AS FOLLOWING: - Mona Lisa's secret smile - Espionage Finger Signaling - Sistine Chapel Ceiling by Michelangelo - The Creation of Adam - Burj Khalifa up in the air - Butterflies Flapping - Bunny Winking - Panda Laid Back - Wartime Propaganda Posters - Uncle Sam - Rosie The Riveter - Ukiyo-E Prints - Chimps Smiling - Signal Lamp - Lightning - Traditional Telegraph-Use in Military - Missile Firing - Oil Lamp - Flower Blooming - Statue of Liberty Holding the Torch INTERNATIONAL MORSE CODE A •ー B ー••• C ー•ー• D ー•• E • F ••ー• G ーー• H •••• I •• J •ーーー K ー•ー L •ー•• M ーー N ー• O ーーー P •ーー• Q ーー•ー R •ー• S ••• T ー U ••ー V •••ー W •ーー X ー••ー Y ー•ーー Z ーー•• Morse code has been in use for more than 160 years, longer than any other electrical coding system. International Morse code today is most popular among amateur radio operators. Morse code has been employed as an assistive technology, helping people with a variety of disabilities to communicate.

About

Sudo Encrypt

Securely encrypt and decrypt messages using RSA encryption. Generate your own keypairs, import others' public keys, and sign/verify message signatures. Seamlessly integrate with iMessage for easy sharing of encrypted content.

Highlights
  • Generate RSA keypairs locally
  • Encrypt messages with public keys
  • Decrypt messages with private keys
  • Sign and verify message signatures
  • iMessage extension for seamless integration
  • Embed encrypted messages as iMessage objects
Features
Read full description

- Generate RSA keypairs locally - Import others' public keys and encrypt messages to send to others - Decrypt messages others sent to you with your private key - Sign / Verify message signature Best of all, encryption and decryption of messages can be done directly in the iMessage app. When using the in-app extension, you no longer have to send a long piece of string, the encrypted message is embedded into an iMessage object so the other side can just click and decrypt.

Screenshots

Telegraph4 screens
Sudo Encrypt3 screens

Verdict

The call

The clearest difference is review sentiment: Sudo Encrypt at 100% against Telegraph's 20%. Sudo Encrypt also leads on price (Free vs $1.99) and update cadence (every 9 days vs every 4 months). Telegraph's advantage is iOS requirement (9.0 vs 13.0). On 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

Sudo Encrypt is free to download; Telegraph costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Telegraph ships an update every 4 months, Sudo Encrypt every 9 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Telegraph versus Sudo Encrypt: the parameters behind the verdict, then further details
ParameterTelegraphSudo Encrypt
Price$1.99Free — better
Rating—4.7 (6 ratings) — better
Positive reviews20.0% of reviews100.0% of reviews — better
Number of ratings—6 — better
Update frequencyEvery 4 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size70 MB2 MB
Age rating4+4+
Developer俊 姜Shunzhe Ma

Customer experience

Telegraph

Written reviews10 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

Sudo Encrypt

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Telegraph

No in-app purchases

None

Sudo Encrypt

No in-app purchases

Questions

Is Telegraph free?
Telegraph costs $1.99, with no in-app purchases.
Is Sudo Encrypt free?
Sudo Encrypt is free to download, with no in-app purchases.
Do Telegraph or Sudo Encrypt have ads?
Neither Telegraph nor Sudo Encrypt shows ads.
Which is updated more often, Telegraph or Sudo Encrypt?
Telegraph ships an update every 4 months, and Sudo Encrypt every 9 days. Most recently, Telegraph was updated on November 1, 2026 and Sudo Encrypt on November 3, 2026.

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