Comparison

Holyiot vs Mi Speaks

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

Head to head
About

Holyiot

Features
Read full description

A device for recording ambient temperature and humidity. The data recorded by the device can be transferred to mobile phone with Bluetooth for easy viewing and exporting.

About

Mi Speaks

Convert text to speech and read along with highlighted words. Import content from various sources, including images and PDFs, for offline playback. Premium features offer cross-device syncing, unlimited input, and audio file sharing.

Highlights
  • Text-to-speech conversion
  • Import text from images and PDFs
  • Background playback
  • Highlight spoken words
  • Offline compatibility
  • Cross-device sync (Premium)
  • Share audio files (Premium)
Features
Read full description

Mi Speaks reads your books, articles and documents aloud in voices that sound genuinely human — generated on your device, never in the cloud. STUDIO VOICES — PREMIUM Twenty-eight neural voices, American and British, male and female. They run entirely on your iPhone: nothing you read is ever uploaded, and they work in airplane mode. Blend two voices together to make one of your own. READ ALONG Every word is highlighted as it is spoken. Import a PDF and you can follow along on the real page, with the word lit where it actually sits — not a transcription of your book, but your book. FIND YOUR PLACE Jump straight to any chapter of an imported PDF. Mi Speaks remembers where you stopped, on every device. Skip from chapter to chapter right from the lock screen. BEFORE YOU PUT THE PHONE DOWN Studio Voices need no connection once they are installed, but generating them uses the graphics processor, and iOS will not run that while an app is off screen. Prepare Full Document renders every sentence up front — after that there is nothing left to generate, so it plays to the end with the screen locked, in another app, or on a flight. And if you haven't prepared a document, reading still doesn't stop: any passage that isn't ready yet is read in your own system voice, and Mi Speaks offers to prepare the rest for next time. FREE, WITH NO TIME LIMIT + Read documents of any length + Import text, PDFs, photos of pages, and anything from the share sheet + Live word highlighting, background playback, lock screen controls + PDF page view and chapter navigation + Keep 3 documents in your library, each remembering where you left off + Resume Reading widget on the home and lock screen + Works completely offline PREMIUM ADDS — IN-APP PURCHASE * Studio Voices — all 28, on device * An unlimited library, in sync across iPhone, iPad and Apple Watch * Every playback speed from 0.5x to 2x, plus Turbo * Export anything to an audio file you can keep Premium is an optional in-app purchase: a 7-day free trial, then a Monthly or Yearly auto-renewing subscription. There is also a one-time Lifetime purchase if you would rather not subscribe. Studio Voices need a one-time download of about 325 MB. This uses Apple's Standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Holyiot4 screens
Mi Speaks4 screens

Verdict

The call

The clearest difference is in-app purchases: Holyiot at none against Mi Speaks's 3. Holyiot also leads on iOS requirement (13.0 vs 26.0). Mi Speaks's advantage is update cadence (fortnightly vs every 2 months). On price, 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. Mi Speaks sells 3 in-app purchases, starting at $4.99 per month. Holyiot asks for nothing beyond the download.

UpkeepUpdate frequency

Holyiot ships an update every 2 months, Mi Speaks fortnightly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Holyiot versus Mi Speaks: the parameters behind the verdict, then further details
ParameterHolyiotMi Speaks
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS13.0 — better26.0
Further details — not scored
Size34 MB70 MB
Age rating4++4
DeveloperShenzhen Hong yi yun jia technology Co.,LTDBlaine Miller

In-app purchases

None

Holyiot

No in-app purchases

3 purchases

Mi Speaks

Subscriptions2
  • Monthly7 Days trial$4.991 Month
  • Yearly7 Days trial$39.991 Year
One-time1
  • Lifetime$99.99

Questions

Is Holyiot free?
Holyiot is free to download, with no in-app purchases.
Is Mi Speaks free?
Mi Speaks is free to download, with in-app purchases available.
Do Holyiot or Mi Speaks have ads?
Neither Holyiot nor Mi Speaks shows ads.
Which is updated more often, Holyiot or Mi Speaks?
Holyiot ships an update every 2 months, and Mi Speaks fortnightly. Most recently, Holyiot was updated on November 7, 2026 and Mi Speaks on November 3, 2026.

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