Plumbline Studio vs Membership Navi
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Plumbline Studio
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Plumbline Studio turns your iPhone into a focused measurement bench for carpenters, remodelers, inspectors, installers, and careful homeowners. Use it when you need a level, plumb check, protractor, slope calculator, flatness scan, or trade math without opening a pile of separate utilities. Core tools: - Live bubble level with tap-to-zero calibration - Dual-axis bullseye readout for cabinets, benches, shelves, and trim - AR-style plumb planning view for checking vertical alignment - Protractor and inclinometer with hold-to-lock angle capture - Slope calculator with rise, run, degrees, percent grade, and ratio - Stair, rafter, crown, board-foot, and cut-list helpers - Flatness scan for spotting dips and bumps across a surface - Project journal for saved measurements, notes, client names, and locations Plumbline Studio is built around practical job flow. Take a reading, lock it, copy it, save it to a project, and keep moving. The interface is designed for repeated work in a shop, basement, garage, or jobsite, not for a one-time novelty measurement. The app stores projects locally on your device. Camera and photo access are used only when you choose to attach a reference image to a measurement.
Membership Navi
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Tired of hunting for this shop's app, that program's barcode, and the other membership card? I was, so I made this app. Membership Navi saves all your barcodes, QR codes, and even plain member numbers in one app. So when someone asks you to "open the app": no surprise "login again please", no bad-signal drama, no "you need to update". No digging for that one app you use once in a million years. Just launch Membership Navi โ all your codes are waiting for you. How do you add them? Scan a physical card with the in-app camera. Already have a photo of it? Load it with the photo picker. The code lives inside another app? Take a screenshot and Share it to Membership Navi. Done. Easy peasy. And if that one app blocks screenshots... borrow a friend's phone for a second, take a picture of your screen, then scan the friend's screen with Membership Navi's camera. (Naughty, naughty.) Membership Navi remembers each code's exact format and shows it back exactly as it was scanned. So it reads on the first try at the register. QR, EAN, Code 128, Code 39, Codabar, PDF417, Aztec, and friends are all supported. Your cards sync through iCloud, so your data moves with the clouds. Then comes raining down onto all your devices. Including your Apple Watch! You don't even need to pull out your phone at the market anymore. Just show your wrist, and done. No account creation. No ads. No network required. No collecting your data, no selling your data.
Screenshots
Verdict
The clearest difference is update cadence: Plumbline Studio at every 10 days against Membership Navi's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Plumbline Studio costs $0.99 and Membership Navi $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Plumbline Studio ships an update every 10 days, Membership Navi monthly. Both last shipped on October 31, 2026.
| Parameter | Plumbline Studio | Membership Navi |
|---|---|---|
| Price | $0.99 | $0.99 |
| Update frequency | Every 10 days โ better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch โ better |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert Corbin | KIVANC YAZAN |
In-app purchases
Plumbline Studio
No in-app purchases
Membership Navi
No in-app purchases
Questions
Is Plumbline Studio free?
Is Membership Navi free?
Do Plumbline Studio or Membership Navi have ads?
Which is updated more often, Plumbline Studio or Membership Navi?
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