Comparison

Letteris AI vs MirrorCaption

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

Head to head
About

Letteris AI

Scan and securely store letters in iCloud. This app simplifies complex documents into easy-to-read notes and allows you to chat with your letters for instant clarity. Add due dates to your calendar and access your scanned documents anytime.

Highlights
  • Scan letters with phone camera
  • Secure iCloud storage
  • Document simplification
  • AI chat for document clarity
  • Calendar due date integration
  • Shareable PDF exports
Features
Read full description

1. Scan letters with your phone and save them securely in iCloud. 2. Simplify documents. Long or confusing text becomes clear, easy-to-read notes. 3. Chat with your letters to ask questions and get instant clarity. 4. Add due dates directly to your calendar. 5. Your letters are stored only in your iCloud, never on our servers. 6. Access anywhere, share and keep scanned letters. PDFs or the original text are always available on your iPhone.

About

MirrorCaption

Features
Read full description

MirrorCaption is a simultaneous interpreter in your pocket. It listens to a live conversation and gives you the other language as it is spoken — in meetings, lectures, calls, and face-to-face conversations. Point your iPhone at any conversation and watch the words appear on screen the moment they are said, in the original language and translated into yours. When you're done, get a clean AI summary of everything that was said. REAL-TIME CAPTIONS AND TRANSCRIPTION Live captions appear as people speak, with high accuracy. MirrorCaption works as a speech to text app for meetings, lectures, interviews, and videos — no file to upload, no recording to process afterwards. Real-time transcription starts the second you tap record. LIVE TRANSLATION, BOTH DIRECTIONS See real-time translation of what is being said, in your own language, as it happens. The face-to-face mode splits the screen across the table, so two people speaking different languages can hold a natural conversation — each reading their own side, each in their own language. AI SUMMARIES Turn a long meeting, lecture, or call into a concise, structured recap in one tap. Get the decisions and the action items without re-reading a full transcript. WHAT YOU CAN DO • Live captions on screen for talks, videos, and calls • Real-time transcription of meetings, lectures, and interviews • Instant translation between many languages as people speak • Two-way face-to-face conversation mode with a split screen • One-tap AI summary of any session • Searchable history — save your sessions and revisit them anytime • Custom vocabulary — teach it names, brands, and jargon so they are transcribed correctly • Keeps transcribing while the screen is locked or you are in another app • Fully localized interface in many languages PERFECT FOR • Multilingual meetings, interviews, and video calls • Travelling and talking with locals • Conferences, lectures, and note-taking • Accessibility — live captions and subtitles for deaf and hard-of-hearing users • Following a conversation in a noisy room PRIVACY Audio is streamed securely to power live transcription and is not stored on your device by default — you can opt in to saving it. You stay in control of your data, and you can delete your account and your history at any time. FREE TO TRY Start with a free allowance of transcription time, no card needed. If you need more, subscriptions and one-off hour packs are available in the app, with the current price shown on the purchase screen before you buy. Payment is charged to your Apple Account, and a subscription renews automatically unless it is turned off at least 24 hours before the end of the current period. You can manage or cancel it any time in your Apple Account settings. Terms of Use: https://www.mirrorcaption.com/terms Privacy Policy: https://www.mirrorcaption.com/privacy

Screenshots

Letteris AI4 screens
MirrorCaption4 screens

Verdict

The call

The clearest difference is update cadence: MirrorCaption at every 4 days against Letteris AI's every 2 months. Letteris AI's advantage is iOS requirement (16.6 vs 18.0). On price, 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

Both are free to download. Letteris AI sells 3 one-off in-app purchases and MirrorCaption sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Letteris AI ships an update every 2 months, MirrorCaption every 4 days. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 7 level
Letteris AI versus MirrorCaption: the parameters behind the verdict, then further details
ParameterLetteris AIMirrorCaption
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.6 — better18.0
Further details — not scored
Size32 MB6 MB
Age rating4+4+
DeveloperAmelix Solutions LLCXueyun Qian

In-app purchases

3 purchases

Letteris AI

One-time3
  • Letteris Credits $5$4.99
  • Credits $10 Pack$9.99
  • Credits $20 Pack$19.99
7 purchases

MirrorCaption

Subscriptions4
  • Monthly$4.991 Month
  • Unlimited Monthly$34.991 Month
  • Yearly$49.991 Year
Show 1 more
  • Unlimited Yearly$279.001 Year
One-time3
  • 15-Hour Voice Pack$6.99
  • 100-Hour Voice Pack$49.99
  • Premium$89.99

Questions

Is Letteris AI free?
Letteris AI is free to download, with in-app purchases available.
Is MirrorCaption free?
MirrorCaption is free to download, with in-app purchases available.
Do Letteris AI or MirrorCaption have ads?
Neither Letteris AI nor MirrorCaption shows ads.
Which is updated more often, Letteris AI or MirrorCaption?
Letteris AI ships an update every 2 months, and MirrorCaption every 4 days. Most recently, Letteris AI was updated on October 30, 2026 and MirrorCaption on November 6, 2026.

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