Comparison

Build SRT vs Converter One

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

Head to head
About

Build SRT

This utility converts spoken audio from videos into standard SRT subtitle files. It supports importing videos from your device and offers efficient sound extraction for subtitle generation. The generated SRT files are universally compatible and easily shareable.

Highlights
  • Speech-to-text transcription
  • Import videos from Photos and Files
  • Extract audio for SRT generation
  • Universal SRT file format
  • Share SRT files easily
Read full description

Build SRT leverages Apple’s built-in speech recognition framework to convert spoken audio into text. You can use the system’s native speech-to-text functionality to experience its transcription accuracy firsthand. To complement the limitations of the built-in recognizer, the app also supports manual import of natural language text, offering greater flexibility in subtitle creation. The app generates subtitle files in standard SRT format, but it does not produce new video files with embedded subtitles. The "Build SRT" App can efficiently extract the voice in the video and convert these sounds into subtitle SRT files. The generated subtitle SRT file is a universal subtitle file format, so that you can use the subtitle SRT file widely. Features: • It is very convenient to import videos from the system "Photos" and "Files" • Import videos at the same time and view subtitles according to the video at a glance • Efficiently and quickly extract the sound in the video and convert it into an SRT file • SRT files can be quickly shared on other devices.Support sharing, copying, spacing and forwarding on Apple system to facilitate exporting SRT files for modification and use. • SRT files are a universal subtitle file format and can be used widely. Support: If you have any suggestions and comments, please do not hesitate to contact the developer: Email: hanmingjie@gmail.com WeChat: MingJie-Han

About

Converter One

Features
Read full description

Converter One is a beautifully crafted universal unit converter that runs seamlessly across iPhone, iPad, Mac, and Apple Vision Pro. Designed for simplicity and precision, it offers an elegant, distraction-free interface that feels perfectly at home in every Apple environment. FEATURES • Instantly convert across all major unit types • Universal design for iOS, iPadOS, macOS, and visionOS • Smooth 3D experience and gesture support on Vision Pro • Favorites and smart search for quick access • Adaptive layout that feels natural on any device • Haptic feedback and dynamic “liquid glass” visuals • Fully offline, ad-free, and privacy-friendly SUPPORTED CATEGORIES Length, Area, Volume, Weight, Temperature, Speed, Time, Pressure, Energy, Power, Force, Angle, Data, Data Rate, Frequency, Fuel, Density, Torque, and more. PRIVACY Converter One collects no personal data and works completely offline.

Screenshots

Build SRT4 screens
Converter One4 screens

Verdict

The call

The clearest difference is update cadence: Build SRT at every 5 weeks against Converter One's every 6 months. Converter One's advantage is price ($0.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement 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

Build SRT costs $2.99 and Converter One $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Build SRT ships an update every 5 weeks, Converter One every 6 months. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 8 level
Build SRT versus Converter One: the parameters behind the verdict, then further details
ParameterBuild SRTConverter One
Price$2.99$0.99 — better
Rating5.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.617.6
Further details — not scored
Size25 MB10 MB
Age rating4+4+
Developer韩 明洁Ashkan Zanjani

In-app purchases

None

Build SRT

No in-app purchases

None

Converter One

No in-app purchases

Questions

Is Build SRT free?
Build SRT costs $2.99, with no in-app purchases.
Is Converter One free?
Converter One costs $0.99, with no in-app purchases.
Do Build SRT or Converter One have ads?
Neither Build SRT nor Converter One shows ads.
Which is updated more often, Build SRT or Converter One?
Build SRT ships an update every 5 weeks, and Converter One every 6 months. Most recently, Build SRT was updated on October 10, 2026 and Converter One on October 3, 2026.

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