Comparison

Primality vs Helm

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

Head to head
About

Primality

This app determines if a given integer is prime or provides its prime factors. It also calculates the ordinal position of prime numbers found, up to a certain limit.

Highlights
  • Primality testing
  • Prime factorization
  • Prime ordinality calculation
  • Large integer support (up to 999,999,999,999)
  • Clean and simple interface
Features
Read full description

The Primality App has a clean and simple, yet powerful, function: Given any integer, the app determines either that the given integer is prime or else it provides all prime factors of that integer. Very clean, very simple, focussed. The app operates in the range of 0 - 999,999,999,999. A popular feature of the app is its ability to determine the prime ordinality of each prime found, such as observing that 97 if the 25th prime. (However, this particular feature is available only up to the 100,000th prime, which is 1,299,709.) Requires iOS 13 or higher.

About

Helm

Features
Read full description

Turn your iPhone into a powerful remote control for your Mac. Helm connects over SSH on your local network — no cloud, no third-party servers, just direct control. WHAT YOU CAN DO FOR FREE: • Trackpad — Move your cursor with smooth gestures, tap to click, scroll naturally • Keyboard — Quick clipboard shortcuts: copy, paste, cut, select all • Audio — Adjust volume, mute/unmute, quick presets • Power — Sleep, lock, restart, or shut down your Mac remotely UNLOCK HELM PRO: • Media Control — Now playing info, playback controls, seek, shuffle & repeat for Music and Spotify • Brightness — Adjust display brightness with a simple slider • Appearance — Toggle dark mode and change your Mac's accent color • Bluetooth — View connected devices with battery levels, connect and disconnect • Apps — See running apps, quit or force quit with one tap • Browser Tabs — Manage Safari and Chrome tabs remotely • Screenshot — Capture your Mac's screen and save to your iPhone • Storage — Monitor disk usage, view volumes, eject external drives HOW IT WORKS: 1. Enable Remote Login (SSH) on your Mac 2. Connect Helm on the same Wi-Fi network 3. Start controlling — that's it WHY HELM? • Privacy First — All data stays on your local network. No cloud. No tracking. • Auto-Discovery — Finds your Mac automatically via Bonjour • Multiple Devices — Save and switch between multiple Macs • Secure — Passwords stored in iOS Keychain with SSH host key verification • Beautiful Design — Premium dark interface with smooth animations and haptic feedback Perfect for developers, power users, and anyone who wants to control their Mac from the couch. Download Helm and take control today. Privacy Policy: https://cappsule.com.tr/helm/privacy-policy.html Terms of Use: https://cappsule.com.tr/helm/terms-of-service.html

Screenshots

Primality2 screens
Helm4 screens

Verdict

The call

The clearest difference is in-app purchases: Primality at none against Helm's 1. Primality also leads on iOS requirement (13.2 vs 17). On price, update cadence, 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. Helm sells 1 one-off in-app purchase. Primality asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 27, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 8 level
Primality versus Helm: the parameters behind the verdict, then further details
ParameterPrimalityHelm
PriceFreeFree
Rating4.9 (24 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings24 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS13.2 — better17
Further details — not scored
Size1 MB28 MB
Age rating4+4+
DeveloperBruce SchechterCappsule Teknoloji

In-app purchases

None

Primality

No in-app purchases

1 purchases

Helm

One-time1
  • Helm Pro$4.99

Questions

Is Primality free?
Primality is free to download, with no in-app purchases.
Is Helm free?
Helm is free to download, with in-app purchases available.
Do Primality or Helm have ads?
Neither Primality nor Helm shows ads.
Which is updated more often, Primality or Helm?
Primality ships an update every 2 months, and Helm every 2 months. Most recently, Primality was updated on September 27, 2026 and Helm on October 3, 2026.

Other comparisons