Comparison

Mumblers vs FAX

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

Head to head
About

Mumblers

Connect to Mumble voice-chat servers with low latency on your iPhone or iPad. Features voice activity, push-to-talk, and on-device user blocking for privacy. Stay connected and in control even when the app is locked.

Highlights
  • Low-latency voice chat
  • Voice Activity and Push to Talk
  • Encrypted UDP communication
  • Saved server bookmarks
  • On-device user blocking
  • Lock screen controls
  • No ads or tracking
Read full description

Mumblers is a native client for connecting to Mumble voice-chat servers from iPhone and iPad. Save your servers, join channels, talk with low latency, and stay in control when the app or device is locked. VOICE THAT FITS IOS • Voice Activity with an automatic noise-aware trigger • Push to Talk when you want explicit control • Low-latency Opus voice over encrypted UDP with automatic fallback • Reliable recovery after Dictation, calls, route changes, and network changes • Separate voice volume plus clear mute and deafen controls YOUR SERVERS, YOUR IDENTITY • Saved server bookmarks and mumble:// links • Passwords and imported certificate identities protected by iOS Keychain • System certificate validation and explicit trust for self-signed servers • Channel messages and direct messages • On-device user blocking that immediately hides messages and drops voice audio • A report flow with reviewable details for Mumblers support or server administrators • Compatibility with current and legacy Mumble voice packets USEFUL AT A GLANCE While you are connected to a voice room, a Live Activity shows the server, channel, selected microphone, and current connection state. Mute or deafen from the Lock Screen or Dynamic Island without reopening the app. PRIVACY BY DESIGN Mumblers contains no ads, third-party analytics, or cross-app tracking. Diagnostics stay in memory and are shared only when you choose to export them. Blocking stays on your device, and reports are never sent automatically. A Mumble server is required. Servers are independently operated and may have their own privacy, logging, access, and moderation policies. Mumblers is an independent Mumble-compatible client and is not the official Mumble app.

About

FAX

This app transforms your phone into a functional fax machine, complete with authentic modem sounds. Send typed notes, photos, PDFs, and scans as actual faxes. It offers a unique, retro communication experience with features like group faxes and offline delivery.

Highlights
  • Real fax machine functionality
  • Authentic modem handshake sounds
  • Send typed notes, photos, scans, PDFs
  • Group faxes with live printing
  • Offline delivery for busy/off machines
  • Persistent paper roll conversations
Features
Read full description

FAX-OFF turns your phone into a paper fax machine. Not a fax-themed messaging app. An actual fax machine, with the noises. Write a page. Dial somebody. A genuine T.30 modem handshake goes down the line: the chirp, the answer tone, the V.21 warble, the training screech you have not heard since 1997. Then the page prints, line by line, onto a paper roll at the other end, while you both sit there and watch. This is the whole idea. It is slow on purpose. WHAT GOES ON A PAGE Typed notes. Photos. Camera scans of actual paper. PDFs. Drawings done with a finger. Your contact card. A map of where you are standing. Everything is scanned into slightly grubby black-and-white paper on the way through, because that is what a fax does to things. There is a DIRTY GLASS setting. It makes it worse. ROLLS AND GROUP FAXES Every conversation is one long paper roll, kept on your phone. A group fax is a single call: the exchange rings everyone at once, whoever is holding a line prints the page live as it comes off your scanner, and the header records who was LINE BUSY or NO ANSWER so the whole group knows exactly who missed it. WHEN NOBODY IS HOME If the other machine is switched off, the exchange answers in its place and keeps the page. It starts printing the moment they open the app. Nobody has to be online at the same time, which is more than could be said for the original. WHAT IT COSTS Faxing another FAX-OFF user is free. Every page, as often as you like, forever. KEEP THE MACHINE. One payment, once. Unlocks group faxes, photos, PDFs, drawings and location pages, permanently. Not a subscription. Nothing renews, nothing to cancel. RECEIVING NUMBER. An optional real fax number that answers inside the app, so real fax machines can send pages back to you, with an outgoing monthly allowance included. Billed monthly and renews itself until you cancel in your App Store subscription settings. THE SMALL PRINT, PRINTED SMALL No ads. No tracking SDK. No call audio is ever stored: the exchange keeps a queued page only until it has been delivered, and the finished roll lives on your phone. FAX-OFF is a novelty communication app, not a certified or legally attested fax service. Do not use it for emergencies, or anywhere proof of transmission is legally required. Your lawyer has a real fax machine for that. Ours just sounds the same. Terms of Use (EULA): https://faxoff.app/terms Privacy Policy: https://faxoff.app/privacy

Screenshots

Mumblers4 screens
FAX4 screens

Verdict

The call

The clearest difference is rating: FAX at 5.0 against Mumblers's 3.7. FAX also leads on update cadence (every 4 days vs every 9 days) and iOS requirement (15.0 vs 17.0). Mumblers's advantage is in-app purchases (none vs 1) and ratings volume (3 vs 1). 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. FAX sells 1 one-off in-app purchase. Mumblers asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAX holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Mumblers ships an update every 9 days, FAX every 4 days. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

Scorecard6 real differences · 4 level
Mumblers versus FAX: the parameters behind the verdict, then further details
ParameterMumblersFAX
PriceFreeFree
Rating3.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size8 MB36 MB
Age rating12+17+
Developergeorge khouryYoav Schneider

Customer experience

Mumblers

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

FAX

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mumblers

No in-app purchases

1 purchases

FAX

One-time1
  • Keep the Machine$9.99

Questions

Is Mumblers free?
Mumblers is free to download, with no in-app purchases.
Is FAX free?
FAX is free to download, with in-app purchases available.
Which has better reviews, Mumblers or FAX?
FAX is rated higher. Mumblers averages 3.7 out of 5 from 3 ratings, while FAX averages 5.0 from 1 ratings.
Do Mumblers or FAX have ads?
Neither Mumblers nor FAX shows ads.
Which is updated more often, Mumblers or FAX?
Mumblers ships an update every 9 days, and FAX every 4 days. Most recently, Mumblers was updated on November 6, 2026 and FAX on November 10, 2026.

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