Comparison

Ace Subtitle Converter vs SpeedReader

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

Head to head
About

Ace Subtitle Converter

Features
Read full description

You can freely convert the subtitle format, support different languages and different encoding formats. This App can help you in the following situations. 1. when a garbled subtitle file is found 2. automatically detects the file encoding when you don't know what encoding it is 3. when you want to convert the file to the most universal UTF-8 encoding, which is supported by all software 4. when the software you are using does not support the current subtitle format and you want to convert to a supported subtitle format Automatic detection of file language encoding, easy conversion of subtitle formats SRT, LRC, ASS, SSA, VTT, support for all languages of the world. Automatic detection of file language encoding, easy conversion of subtitle formats SRT, LRC, ASS, SSA, VTT, support for all languages of the world and all language encoding formats. The supported subtitle formats are: SRT, LRC, ASS, SSA, VTT ; The supported languages and encoding formats are: Arabic: ISO 8859-6, OEM 720, Windows-1256 Baltic: ISO 8859-4, ISO 8859-13, OEM 775, Windows-1257 Celtic: ISO 8859-14 Cyrillic: ISO 8859-5, KOI8-R, KOI8-U, Macintosh, OEM 855, OEM 866, Windows-1251 Central European: OEM 852, Windows-1250 Chinese: BIG5(Traditional), GB2312(Simplified) Eastern European: ISO 8859-2 Greek: ISO 8859-7, OEM 737, OEM 869, Windows-1253 Hebrew: ISO 8859-8, OEM 862, Windows-1255 Japanese: Shift-JIS Korean: Windows-949, EUC-KR North European: OEM 861 : Icelandic, OEM 865 : Nordic Thai: TIS-620 Turkish: ISO 8859-3, ISO 8859-9, OEM 857, Windows-1254 Western European: ISO 8859-1, ISO 8859-15, OEM 850, OEM 858, OEM 860 : Portuguese, OEM 863: French, OEM-US, Windows-1252 Vietnamese: Windows-1258

About

SpeedReader

Features
Read full description

## App Description Reading shouldn't be this hard. SpeedReader is a free Safari extension that lets you speed read any web page using RSVP (Rapid Serial Visual Presentation) — showing one word at a time at a controlled pace. For neurodivergent readers — people with ADHD, dyslexia, or other processing differences — traditional reading is exhausting. Eyes jump between lines, focus drifts mid-paragraph, and articles get abandoned halfway through. RSVP removes the cognitive overhead of eye tracking and line scanning, so your brain just processes. **How it works** Tap the SpeedReader icon in Safari's toolbar. The article text is extracted automatically and words appear one at a time with a highlighted focus point. Tap anywhere to pause, tap again to resume. That's it. **Features** • Focus-point highlighting — each word highlights its optimal recognition point, the letter your eye naturally anchors to • Context preview — pause and see the surrounding sentence to re-orient quickly • Punctuation pacing — periods and commas add natural micro-pauses so content flows like speech • Speed control — 100 to 600 words per minute • OpenDyslexic font — toggle the dyslexia-friendly font with one tap • Light and dark mode — follows your system theme or override manually • Keyboard shortcuts — on Mac and iPad: Space to play/pause, arrows to navigate • Text selection fallback — select any text on a page and speed read just that • Works entirely offline — no data leaves your device No accounts. No subscriptions. No tracking. Free and open source.

Screenshots

Ace Subtitle Converter3 screens
SpeedReader1 screens

Verdict

The call

The clearest difference is price: SpeedReader at Free against Ace Subtitle Converter's $1.99. SpeedReader also leads on update cadence (every 4 days vs every 17 months). Ace Subtitle Converter's advantage is iOS requirement (14.0 vs 17.0). 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

SpeedReader is free to download; Ace Subtitle Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ace Subtitle Converter ships an update every 17 months, SpeedReader every 4 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 3 level
Ace Subtitle Converter versus SpeedReader: the parameters behind the verdict, then further details
ParameterAce Subtitle ConverterSpeedReader
Price$1.99Free — better
Update frequencyEvery 17 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size15 MB6 MB
Age rating4+4+
Developer慕华 齐Chris Cantu

In-app purchases

None

Ace Subtitle Converter

No in-app purchases

None

SpeedReader

No in-app purchases

Questions

Is Ace Subtitle Converter free?
Ace Subtitle Converter costs $1.99, with no in-app purchases.
Is SpeedReader free?
SpeedReader is free to download, with no in-app purchases.
Do Ace Subtitle Converter or SpeedReader have ads?
Neither Ace Subtitle Converter nor SpeedReader shows ads.
Which is updated more often, Ace Subtitle Converter or SpeedReader?
Ace Subtitle Converter ships an update every 17 months, and SpeedReader every 4 days. Most recently, Ace Subtitle Converter was updated on October 27, 2026 and SpeedReader on October 25, 2026.

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