Comparison

Multilevel vs SPA WIFI LINK

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

Head to head
About

Multilevel

Measure the precise angle between multiple devices simultaneously. This app is useful for aligning physical objects, especially when they are distant or obstructed. It utilizes Bluetooth for seamless communication between devices without manual pairing.

Highlights
  • Precise angle measurement between multiple devices
  • Bluetooth-based device communication
  • Automatic device discovery and connection
  • Conventional bubble level functionality
  • Cross-platform support (macOS, iOS)
Read full description

Displays precise angle between two or more devices, making it possible to perfectly align physical objects in relation to one another. Measuring relative level comes in handy for aligning items that have significant distance or physical obstruction between them. Sometimes there’s a need to determine angle between separate objects, rather than to see how flat they lay relative to the planet’s surface. The app uses Bluetooth to broadcast its magnetometer’s data and to observe position values of other devices that run Multi Level, then it uses that data to compare and display its own physical orientation in relation to other devices. The communication is done without having to pair the devices — there’s no need to tap on anything or deal with PIN codes, everything happens automatically. With only one device running the app, Multi Level works as a conventional bubble level. Position measurements can be observed from desktop and laptop computers using the macOS version of Multi Level. You don’t need to purchase this app more than once, as long as all devices use the same Apple ID.

About

SPA WIFI LINK

Features
Read full description

Manage your hot tub from anywhere! Easily schedule heating and maintenance. For wifi enabled spa with icon. Designed for 2.4GHz wifi bandwidth for more range. Does not support 5G Hz wifi. We recommend enabling your device location setting for improved pairing with the product. Requires IOS 12.3 or later. The spa link management app provides full functionality allowing you to connect to your hot tub via wifi and control it form anywhere. You have the option to set temperature and program the program the heater, as well as set maintenance schedules for water filtration, to fit your weekly schedule. The app also makes it easy and convenient to save energy by maintaining and idle water temperature during times of non-use. Program the app to turn on and heat up to the desired temperature automatically,when you are ready to get in, relax and enjoy the soothing bubbles. It’s the ultimate spa experience at your fingertips. No matter where you are.

Screenshots

Multilevel2 screens
SPA WIFI LINK4 screens

Verdict

The call

The clearest difference is update cadence: Multilevel at every 3 months against SPA WIFI LINK's every 9 months. Multilevel also leads on device support (4 vs 2). SPA WIFI LINK's advantage is iOS requirement (12.0 vs 15.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Multilevel ships an update every 3 months, SPA WIFI LINK every 9 months. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 6 level
Multilevel versus SPA WIFI LINK: the parameters behind the verdict, then further details
ParameterMultilevelSPA WIFI LINK
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size1 MB68 MB
Age rating4+17+
DeveloperDefiantware, LLCShanghai sunshine development co., Ltd.

In-app purchases

None

Multilevel

No in-app purchases

None

SPA WIFI LINK

No in-app purchases

Questions

Is Multilevel free?
Multilevel is free to download, with no in-app purchases.
Is SPA WIFI LINK free?
SPA WIFI LINK is free to download, with no in-app purchases.
Do Multilevel or SPA WIFI LINK have ads?
Neither Multilevel nor SPA WIFI LINK shows ads.
Which is updated more often, Multilevel or SPA WIFI LINK?
Multilevel ships an update every 3 months, and SPA WIFI LINK every 9 months. Most recently, Multilevel was updated on October 9, 2026 and SPA WIFI LINK on October 15, 2026.

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