Comparison

ThreadMapper vs LastBar

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

Head to head
About

ThreadMapper

Visualize and diagnose your Thread smart home network. Understand device status, battery levels, and network health with clear grades and historical data. Offers advanced AI insights and AR mapping for detailed troubleshooting.

Highlights
  • Network health at a glance with A-F grade
  • Device status and battery levels
  • Mesh map visualization
  • Offline alerts with quiet respect
  • Device history and uptime tracking
  • AI Insights and troubleshooter
  • AR room mapping
Features
Read full description

ThreadMapper shows what your Thread smart home says about itself. Most Thread devices are invisible. They just work, until they don't, and there's no way to tell which one dropped, which border routers you really have, or whether a quiet sensor is asleep or gone. WHAT YOU GET • Network health at a glance: an A–F grade with a clear score, and the specific issues pulling it down • Better than yesterday? A line under the grade saying whether today is up or down on yesterday, and which rule moved it • Every battery in one list, emptiest first, with the room • Your Thread devices, apart from the rest: the ones that say they are on Thread, and every other accessory labelled for what it is, behind a bridge or not yet known • Mesh map: your Thread devices by room, and the links they report • Offline alerts that respect quiet: a sleepy sensor gets two hours before it is called offline, and devices that go quiet together are one event • Device history: uptime, reboots and firmware changes • Apple Watch app: your grade on your wrist • Home-screen widget and Live Activity for at-a-glance status HONEST ABOUT ITS DATA ThreadMapper shows only what a device or the network states. A device is Thread when it says so. A border router is one the network proves. A line on the map is a link a device reported. iOS doesn't expose radio signal strength for Thread accessories, so there is no signal figure: a device's page shows how quickly it answered, in milliseconds. The battery level is what each accessory reports about itself. PRIVATE BY DESIGN No account. No analytics. No tracking. Everything stays on your iPhone, and the AI features run on device. Your network data is never uploaded. THREADMAPPER PRO: a one-time purchase, not a subscription • AI Insights on any iPhone, and with Apple Intelligence a Network Assistant and a troubleshooter that reads this device's history, all on device • What the radios say: why a device rebooted, how often it changed parent router, how often a battery device wakes, and how many apps and households can still control it • AR room mapping and X-Ray: scan rooms into a floor plan, place each device where it really is, and see the links your devices report drawn through your real home • Your year on one card, your mesh as a film, and as an A2 poster a print shop will take • A year of daily grades on one calendar, no Apple Intelligence needed, a month of history, weekly reports, and when your home is at its worst • Export every health sample, daily grade and battery reading as CSV or JSON, and import them on a new iPhone • Jobs and evidence sheets: a page for a client showing what a visit changed, and a page per device for a warranty claim • Device groups, multiple homes, scheduled reports and a pinned-devices widget REQUIREMENTS ThreadMapper reads your network through HomeKit, so you'll need a home with at least one Thread border router, such as a HomePod mini or an Apple TV 4K. Border routers are found through Local Network access. The Network Assistant and the troubleshooter need iOS 26 and an Apple Intelligence-capable device; AI Insights works on any iPhone. Room scanning needs a Pro-model iPhone with a LiDAR scanner. Want to look around first? Turn on Demo Mode to explore the whole app with a simulated network, no hardware needed.

About

LastBar

Features
Read full description

No bars? LastBar shows you the nearest place where your phone will work. LastBar is a map of mobile coverage made by the people who use it. Phones note the signal of their carrier at the places they pass. Those readings become a map of where there is signal and where there is none. When you are stuck, the map is already on your phone. FIND SIGNAL Choose what you need: an emergency call on any carrier, a call or SMS on your own, or data. LastBar gives you the distance and the direction to the nearest place that has it, says whether it is higher or lower than you, and turns with your compass as you go. It needs no connection. WATER, SHELTER AND HELP Far from anything, the map shows water, shelters, huts and caves, clinics and hospitals, police, fuel and peaks, from OpenStreetMap. Tap one for its address and its phone number. Find Signal points you to the nearest water or shelter too. A MAP FOR EVERY CARRIER See the coverage of all carriers at once, or pick your own. Show any signal, voice, or data on 3G, 4G or 5G. Green is strong, orange is fair, red is weak, and an empty outline means no signal at all. Tap a place for its signal, its download speed, its readings and how recent they are, its altitude, and its coordinates, to copy or to share. Search for a town or a country by name. SATELLITE MAP With LastBar Pro, switch the map to satellite pictures and see the land itself under the coverage: mountains, rivers, fields and towns. Saved areas keep them offline. WORKS WITH NO CONNECTION LastBar is made for the places with no signal, where you need it most. The coverage around you is kept on your phone. Save an area before a trip to have its map, its coverage, its towers and its points of interest with you, offline. YOUR OWN READINGS If you agree to contribute, LastBar takes a reading every few minutes while it is open: where you are and how high, and the kind of network your iPhone is on. Your readings show on your map at once, and are sent when you have a connection again. The Stats tab says what you have mapped, day by day. ANONYMOUS There is no account and no sign-in. LastBar never reads your phone number, your contacts or your calls. Your phone gets a random id that says nothing about you. Readings are combined into map cells before anyone sees them, and are never shared with advertisers. Stop at any time, and delete everything you contributed from within the app. YOUR LOCATION LastBar asks for your location while you use the app, and for nothing more: to show where you are, to guide you to signal, and for the place of a reading. It takes no readings while closed. You can use the map without giving your location. FREE, WITH ONE PURCHASE The map, Find Signal, the points of interest and your own readings are free, and stay so. The free version shows one small ad, and never on Find Signal. LastBar Pro is one payment, with no subscription: it removes the ad, adds the satellite map, lets you save 10 areas where there is one, and keeps the coverage of more places on your phone. GOOD TO KNOW The map is as good as its readings. Where nobody has been with LastBar yet, it is empty: every trip you take with the app open fills it in, for you and for everyone after you. An iPhone tells an app the kind of network and not how strong the signal is: the strengths on the map were measured by phones that can. Coverage changes, and a reading says what was, not what will be. The satellite pictures are from 2016 and show the land, not single houses. Water, shelters and the other points were mapped by volunteers: one may be wrong or gone, and water is not always safe to drink. In an emergency, call your local emergency number. Map data and points of interest © OpenStreetMap contributors. Tower locations © OpenCelliD, CC BY-SA 4.0. Satellite pictures: EOxCloudless by EOX (contains modified Copernicus Sentinel data 2016). Published by CLC Agency. Privacy: https://lastbar.online/privacy — Terms: https://lastbar.online/terms

Screenshots

ThreadMapper4 screens
LastBar4 screens

Verdict

The call

The clearest difference is ads: ThreadMapper at none against LastBar's shown. ThreadMapper also leads on device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement 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. ThreadMapper sells 1 one-off in-app purchase and LastBar sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ThreadMapper ships an update every 4 days, LastBar every 2 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
ThreadMapper versus LastBar: the parameters behind the verdict, then further details
ParameterThreadMapperLastBar
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 daysEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size40 MB52 MB
Age rating4+4+
DeveloperTintin RazavianCode. Like. Clockwork.

In-app purchases

1 purchases

ThreadMapper

One-time1
  • PRO Lifetime$14.99
1 purchases

LastBar

One-time1
  • LastBar Pro$2.99

Questions

Is ThreadMapper free?
ThreadMapper is free to download, with in-app purchases available.
Is LastBar free?
LastBar is free to download, with in-app purchases available.
Do ThreadMapper or LastBar have ads?
LastBar shows ads; ThreadMapper does not.
Which is updated more often, ThreadMapper or LastBar?
ThreadMapper ships an update every 4 days, and LastBar every 2 days. Most recently, ThreadMapper was updated on October 29, 2026 and LastBar on October 31, 2026.

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