Comparison

Sign Documents vs LangLang Live

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

Head to head
About

Sign Documents

Easily sign and manage your documents with a built-in scanner. Digitize paper, add signatures and stamps, and share your finalized files. Supports various document types for a streamlined workflow.

Highlights
  • Add digital signatures
  • Insert stamps
  • Scan documents
  • Create documents from photos
  • Sign PDF, DOC, XLS
  • Share and print documents
Features
Read full description

Sign Documents with One Tap! Scan any document, sign it, and send it to your colleagues. Key Features: - Sign Documents: Easily add digital signatures to your documents. - Add Stamps: Instantly insert stamps onto documents. - Scan Documents: Use the built-in scanner to digitize paper documents. - Create Documents from Photos: Turn photos into complete documents. - Sign Any Document Type: Supports formats like PDF, DOC, XLS, and more. - Share and Print: Send documents to colleagues and print them directly from the app. Make the process of signing documents easier and faster with our app! Privacy Policy: https://signdocapp.click/privacy Terms of Use: https://signdocapp.click/terms

About

LangLang Live

Record conversations on your iPhone or Apple Watch and get transcripts with key points linked to the original audio. Organize meetings by speaker and access recordings offline. Export your data for safekeeping.

Highlights
  • On-device recording and transcription
  • Offline access to recordings
  • Key points with audio links
  • Speaker identification
  • Export audio, transcripts, and voice profiles
  • Mixed-language support (English, Mandarin, Cantonese)
Features
Read full description

Leave the meeting with something you can return to. LangLang records conversations on your iPhone or Apple Watch and turns them into transcripts and key points you can check against the original audio. No account required. Apple Watch is optional. How it works • Start recording on your iPhone or Watch. Stop when you are done. • Read the transcript and return to the audio to check a detail. • Review key points and commitments with links to their source sentences. • Name people you recognize and revisit their past conversations. English, Mandarin and Cantonese For conversations in these languages, including mixed-language meetings. Background noise and overlapping speech can affect transcription and speaker labels. Check important names, dates and amounts against the recording. Your recordings stay under your control Recording, transcription and finding who promised what all work even in Airplane Mode. Processing is on-device by default; no LangLang server ever receives your conversations. No third-party analytics or tracking SDKs. Optional enhanced transcription needs an initial download from Apple. If you enable your own AI provider key, text is sent to that provider. Exporting or sharing sends the data you choose to your chosen destination. Take your history with you Export audio, transcripts and voice profiles in a backup file, then restore it on a fresh installation on your next iPhone. Keep backups somewhere private. Free and LangLang+ Free includes unlimited recording, transcription and playback, naming people, search across your recordings, complete key points for the first three conversations that produce them (then the top point of each), and export of all your data. LangLang+ adds complete key points and possible next steps for every conversation, each linked to the original words, plus memory across recordings: what is still open with someone, brought back when you meet again. Choose a monthly or yearly subscription, or a one-time lifetime purchase. A separate single-conversation purchase unlocks that conversation's complete key points; it does not include LangLang+. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your Apple Account is charged at purchase confirmation, or after an eligible trial ends. Manage or cancel subscriptions in Settings > Apple Account > Subscriptions. Lifetime is a one-time purchase, not a renewing subscription. See the app for current prices and any trial eligibility. Let other participants know when you record, and follow local recording laws. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sign Documents4 screens
LangLang Live4 screens

Verdict

The call

The clearest difference is review sentiment: LangLang Live at 100% against Sign Documents's 0%. LangLang Live also leads on update cadence (every 2 days vs weekly) and rating (5.0 vs 4.7). Sign Documents's advantage is ratings volume (159 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and monetization model 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. Sign Documents sells 5 in-app purchases, starting at $4.99 per 7 days and LangLang Live sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

LangLang Live holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Sign Documents has 159 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Sign Documents's written reviews are positive against 100% of LangLang Live's.

UpkeepUpdate frequency

Sign Documents ships an update weekly, LangLang Live every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Sign Documents versus LangLang Live: the parameters behind the verdict, then further details
ParameterSign DocumentsLangLang Live
PriceFreeFree
Rating4.7 (159 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings159 — better1
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.0 — better18.0
Further details — not scored
Size34 MB868 MB
Age rating4+4+
DeveloperJulia KucharskaMetag

Customer experience

Sign Documents

All ratings158 ratings
Positive93.7%
Neutral1.3%
Negative5.1%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

LangLang Live

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

Sign Documents

Subscriptions5
  • Weekly PRO$4.997 Days
  • Weekly PRO Subscription3 Days trial$4.997 Days
  • Weekly Premium3 Days trial$9.997 Days
Show 2 more
  • Annual PRO$29.991 Year
  • Annual Premium$49.991 Year
4 purchases

LangLang Live

Subscriptions2
  • LangLang+ Monthly14 Days trial$9.991 Month
  • LangLang+ Annual3 Days trial$79.991 Year
One-time2
  • Unlock This Meeting$2.99
  • LangLang+ Lifetime$149.99

Questions

Is Sign Documents free?
Sign Documents is free to download, with in-app purchases available.
Is LangLang Live free?
LangLang Live is free to download, with in-app purchases available.
Which has better reviews, Sign Documents or LangLang Live?
LangLang Live is rated higher. Sign Documents averages 4.7 out of 5 from 159 ratings, while LangLang Live averages 5.0 from 1 ratings.
Do Sign Documents or LangLang Live have ads?
Neither Sign Documents nor LangLang Live shows ads.
Which is updated more often, Sign Documents or LangLang Live?
Sign Documents ships an update weekly, and LangLang Live every 2 days. Most recently, Sign Documents was updated on October 30, 2026 and LangLang Live on October 31, 2026.

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