Comparison

Sudo Encrypt vs Nummeric

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

Head to head
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.

About

Nummeric

This app combines over 200 specialized calculators, a step-by-step math solver, graphing, unit conversion, and a private notebook. It offers a scientific and programmer mode, matrix calculations, and live currency conversion. Designed for privacy, it runs entirely on-device with no tracking or account required.

Highlights
  • 214 specialized calculators
  • Step-by-step math solver
  • Graphing and visualization
  • Unit and currency converter
  • Private math notebook
  • Scientific, RPN, and programmer modes
  • Matrix calculator
Features
Read full description

Nummeric is a calculator that grows with what you're doing. Start with a clean four-function keypad. Slide out the scientific panel when you need it. Switch to RPN if that's how you think. Then there's everything else. 214 SPECIALTY CALCULATORS Mortgage, auto loan, refinance, APR, income tax, take-home pay, BMI, TDEE, one-rep max, percentage, quadratic formula, concrete, roofing, tile — and two hundred more. Search by name. Each one shows the formula it uses and cites its source. GRAPHING Plot up to 10 equations at once. Pan, zoom, and trace with your finger. Find roots, intersections, maxima and minima. Share a graph as an image, or as a link that reopens the exact plot on someone else's iPhone. STEP-BY-STEP SOLVER See the working, not just the answer. Quadratics solve three ways — the formula, factoring, and completing the square — and switching methods rebuilds every step. UNIT CONVERTER 19 categories, from length and weight to torque, density and fuel economy. Currency rates come from a free, ECB-derived source and are cached so they still work offline. NOTEBOOK Write math the way you'd write it on paper. "5 ft + 3 in in cm" works. So does "20% of 150", and a "subtotal = 42.50" you can refer to on the next line. MORE TOOLS Matrices, base conversion for programmers, tip and split, sales tax, VAT, statistics, and date and time math. ON EVERY DEVICE iPhone, iPad, Mac, Apple Watch and Apple Vision Pro. Home Screen and Lock Screen widgets, a custom keyboard that calculates without leaving the app you're in, and a calculator inside Messages. BUILT TO BE TRUSTED Nine deep audit passes went into this release, backed by more than 1,100 automated tests. Full VoiceOver support, Dynamic Type, and contrast-checked colors in all eight themes. NO SUBSCRIPTION One purchase. No subscriptions, no in-app purchases, no ads. Your calculations stay on your device unless you turn on iCloud sync.

Screenshots

Sudo Encrypt3 screens
Nummeric4 screens

Verdict

The call

The clearest difference is rating: Nummeric at 5.0 against Sudo Encrypt's 4.7. Nummeric also leads on update cadence (every 3 days vs every 9 days). Sudo Encrypt's advantage is ratings volume (6 vs 2) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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

Nummeric holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

UpkeepUpdate frequency

Sudo Encrypt ships an update every 9 days, Nummeric every 3 days. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Sudo Encrypt versus Nummeric: the parameters behind the verdict, then further details
ParameterSudo EncryptNummeric
PriceFreeFree
Rating4.7 (6 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings6 — better2
Update frequencyEvery 9 daysEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better17.0
Further details — not scored
Size2 MB20 MB
Age rating4+4+
DeveloperShunzhe MaHonorius Neogy

Customer experience

Sudo Encrypt

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

Nummeric

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sudo Encrypt

No in-app purchases

None

Nummeric

No in-app purchases

Questions

Is Sudo Encrypt free?
Sudo Encrypt is free to download, with no in-app purchases.
Is Nummeric free?
Nummeric is free to download, with no in-app purchases.
Which has better reviews, Sudo Encrypt or Nummeric?
Nummeric is rated higher. Sudo Encrypt averages 4.7 out of 5 from 6 ratings, while Nummeric averages 5.0 from 2 ratings.
Do Sudo Encrypt or Nummeric have ads?
Neither Sudo Encrypt nor Nummeric shows ads.
Which is updated more often, Sudo Encrypt or Nummeric?
Sudo Encrypt ships an update every 9 days, and Nummeric every 3 days. Most recently, Sudo Encrypt was updated on November 3, 2026 and Nummeric on November 2, 2026.

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