Comparison

ISO Fits vs Voice Transcriber AI

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

Head to head
About

ISO Fits

Calculate ISO fits and tolerances for shafts and bores. Supports metric and inch units, displays detailed fit definitions, and includes visual charts and educational videos.

Highlights
  • ISO fits calculation
  • Tolerance class display
  • Metric/inch unit switching
  • Tolerance charts
  • Updated YouTube videos
Features
Read full description

It includes the following features: - Fits calculation: Upon entering the nominal diameter (of either bore or shaft), users select their tolerance classes for bore and shaft. The app then provides the complete ISO fits definition with all relevant values. - Tolerances: Shows the tolerances for the most commonly used ISO tolerance classes. - switch between metric and inch version. - Charts: Shows the most common ISO tolerances classes in a diagram. - Videos: Features the automatically updated latest TSS youtube videos. The results of this application are based on DIN ISO 286 Nominal dimension: 1-3150mm following tolerances included: Shaft: a9, a10, a11, a12, a13, b8, b9, b10, b11, b12, b13, c8, c9, c10, c11, c12, cd5, cd6, cd7, cd8, cd9, cd10, d5, d6, d7, d8, d9, d10, d11, d12, d13, e5, e6, e7, e8, e9, e10, ef3, ef4, ef5, ef6, ef7, ef8, ef9, ef10, f3, f4, f5, f6, f7, f8, f9, f10, fg3, fg4, fg5, fg6, fg7, fg8, fg9, fg10, g3, g4, g5, g6, g7, g8, g9, g10, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11, h12, h13, h14, h15, h16, h17, h18, js1, js2, js3, js4, js5, js6, js7, js8, js9, js10, js11, js12, js13, js14, js15, js16, js17, js18, j5, j6, j7, j8, k3, k4, k5, k6, k7, k8, k9, k10, k11, k12, k13, m3, m4, m5, m6, m7, m8, m9, n3, n4, n5, n6, n7, n8, n9, p3, p4, p5, p6, p7, p8, p9, p10, r3, r4, r5, r6, r7, r8, r9, r10, s3, s4, s5, s6, s7, s8, s9, s10, t5, t6, t7, t8, u5, u6, u7, u8, u9, v5, v6, v7, v8, x5, x6, x7, x8, x9, x10, y6, y7, y8, y9, y10, z6, z7, z8, z9, z10, z11, za6, za7, za8, za9, za10, za11, zb7, zb8, zb9, zb10, zb11, zc7, zc8, zc9, zc10, zc11 Bore: A9, A10, A11, A12, A13, B8, B9, B10, B11, B12, B13, C8, C9, C10, C11, C12, C13, CD6, CD7, CD8, CD9, CD10, D6, D7, D8, D9, D10, D11, D12, D13, E5, E6, E7, E8, E9, E10, EF3, EF4, EF5, EF6, EF7, EF8, EF9, EF10, F3, F4, F5, F6, F7, F8, F9, F10, FG3, FG4, FG5, FG6, FG7, FG8, FG9, FG10, G3, G4, G5, G6, G7, G8, G9, G10, H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, H16, H17, H18, JS1, JS2, JS3, JS4, JS5, JS6, JS7, JS8, JS9, JS10, JS11, JS12, JS13, JS14, JS15, JS16, JS17, JS18, J6, J7, J8, J9, K3, K4, K5, K6, K7, K8, K9, K10, M3, M4, M5, M6, M7, M8, M9, M10, N3, N4, N5, N6, N7, N8, N9, N10, N11, P3, P4, P5, P6, P7, P8, P9, P10, R3, R4, R5, R6, R7, R8, R9, R10, S3, S4, S5, S6, S7, S8, S9, S10, T5, T6, T7, T8, U5, U6, U7, U8, U9, U10, V5, V6, V7, V8, X5, X6, X7, X8, X9, X10, Y6, Y7, Y8, Y9, Y10, Z6, Z7, Z8, Z9, Z10, Z11, ZA6, ZA7, ZA8, ZA9, ZA10, ZA11, ZB7, ZB8, ZB9, ZB10, ZB11, ZC7, ZC8, ZC9, ZC10, ZC11

About

Voice Transcriber AI

Features
Read full description

Turn speech into text with Voice Transcriber AI — 100% private, on-device transcription powered by Apple's Speech framework. WHAT'S NEW IN v1.1: • Home Screen & Lock Screen Widgets for instant recording • Live Activities — see transcription progress in real time on your Lock Screen and Dynamic Island • Translation — translate transcriptions into other languages (iOS 18+) • Settings screen with customizable preferences • Improved detail view with better playback controls KEY FEATURES: - Real-Time Voice Transcription Record and see words appear live on screen. Timestamps are automatically added for every segment. - Import Audio Files Transcribe existing recordings. Supports M4A, MP3, and WAV formats. - Variable Playback Speed Review recordings at 0.5x to 2.0x speed with 15-second skip controls. - Export Anywhere Export transcriptions as PDF, TXT, or SRT subtitle files. Share via Messages, AirDrop, Email, or any app. - 20+ Languages Supported Transcribe in English, Korean, Japanese, Chinese, Spanish, French, German, Arabic, Portuguese, and many more. - Timestamp Navigation Tap any timestamp to jump directly to that moment in the recording. - Smart Search & Organization Search across all transcriptions. Mark favorites for quick access. - Widgets Add recording shortcuts to your Home Screen or Lock Screen. Start transcribing with a single tap. - Live Activities Track your active recording session from the Lock Screen or Dynamic Island without opening the app. - Translation (iOS 18+) Translate your transcriptions into multiple languages using Apple's on-device Translation framework. PRIVACY GUARANTEED: All transcription happens on your device using Apple's Speech framework. Your voice data never leaves your iPhone. No cloud. No tracking. No accounts required. PERFECT FOR: • Meeting notes & minutes • Lecture recording & studying • Interviews & journalism • Journaling & personal memos • Content creation & subtitles • Language learning Download Voice Transcriber AI and turn every conversation into text — privately.

Screenshots

ISO Fits4 screens
Voice Transcriber AI4 screens

Verdict

The call

The clearest difference is price: ISO Fits at Free against Voice Transcriber AI's $0.99. ISO Fits also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Voice Transcriber AI's advantage is in-app purchases (none vs 1) and update cadence (every 9 days vs every 5 months). On 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

CostPrice · In-app purchases · Ads · Monetization

ISO Fits is free to download; Voice Transcriber AI costs $0.99 up front. ISO Fits sells 1 one-off in-app purchase. Voice Transcriber AI asks for nothing beyond the download.

UpkeepUpdate frequency

ISO Fits ships an update every 5 months, Voice Transcriber AI every 9 days. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

Scorecard5 real differences · 5 level
ISO Fits versus Voice Transcriber AI: the parameters behind the verdict, then further details
ParameterISO FitsVoice Transcriber AI
PriceFree — better$0.99
Rating4.2 (6 ratings) — better—
Positive reviews94.6% of reviews—
Number of ratings6 — better—
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size66 MB2 MB
Age rating4+4+
DeveloperTrelleborg Sealing SolutionsHui Chan Seo

In-app purchases

1 purchases

ISO Fits

One-time1
  • Full Version with complete ISO286 Standard$1.99
None

Voice Transcriber AI

No in-app purchases

Questions

Is ISO Fits free?
ISO Fits is free to download, with in-app purchases available.
Is Voice Transcriber AI free?
Voice Transcriber AI costs $0.99, with no in-app purchases.
Do ISO Fits or Voice Transcriber AI have ads?
Neither ISO Fits nor Voice Transcriber AI shows ads.
Which is updated more often, ISO Fits or Voice Transcriber AI?
ISO Fits ships an update every 5 months, and Voice Transcriber AI every 9 days. Most recently, ISO Fits was updated on November 6, 2026 and Voice Transcriber AI on November 11, 2026.

Other comparisons