xHP Flashtool vs Brace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
xHP Flashtool
This app offers a complete tuning solution for ZF automatic and DCT transmissions. It allows users to customize their transmission's behavior, from smooth and comfortable to race-ready performance, directly from their Apple devices. Unlock the full potential of your vehicle's transmission.
- ZF transmission tuning
- Customizable shift behavior
- OTS map selection
- DCT transmission support
- iOS/iPadOS/Mac M1 compatibility
- Multiple adapter options
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xHP Flashtool is the worldwide first and complete Tuning solution for your ZF6HP, ZF8HP Automatic or 7-Speed DCT transmission. xHP is the only tool that focuses fully on getting the best from your Auto-Transmission and is the worldwide leading solution for the best vehicles from Bavaria! xHP put's the power to fully customize your automatic transmission at your hands. Connect your Apple iPhone, IPad or Mac M1 to your car and customize by yourself or choose from pre-defined OTS maps. The ZF Autos are used throughout the whole range, from the 1-Series hatchbacks, to the mighty Alpina and M cars! While the hardware stays widely the same throughout all applications and is mainly divided in only 2 types (6HP19/21 and 6HP26/28 for 6-Speed, 8HP45/50/51 and 8HP70/75/76 for 8-Speed), the software inside the controller makes it possible to adapt the transmission, to every vehicle and mimic a wide range of driver styles. Smooth and comfy in the Luxury applications, the same transmission can be tweaked to deliver snap-on take-off behavior, surprisingly fast shift times and even race-style throttle blips on downshifts. Tweaking your transmission is not only about getting quicker, or holding more power. An automatic transmission is deeply involved into vehicle dynamics and contributes very much to the overall driving experience. From crawling in traffic, over city driving, to taking your vehicle to the drag strip or a race track, the TCU widely defines how your car feels. Like everyone drives different with a manual, the maps inside the TCU hide the secrets to tweak your automatic transmission to your personal likings and finally experience what was once promised in the glossy brochure: Sheer driving pleasure! For a seamless start, please read the manual on needed hardware and prerequisites: https://www.xhpflashtool.com To connect to your car, you have many options: xHP Wifi Adapter (blue), Wifi Thor Adapter, MHD Wifi Adapter (black and orange) or a standard OBD INPA USB or ENET cable! Please check our Connect-Diagram on our website to get further information and sources! https://www.xhpflashtool.com/connect_diagram/
Brace
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Brace is a construction calculator that works the way the trade works: in feet, inches and fractions, with the work shown. There is no subscription, no account and no sign-in. Brace has no networking code at all, so it works in a basement, a crawlspace, or anywhere else with no signal. EVERYTHING IN FRACTIONS In the solvers, type a measurement the way you write it, like 6' 3 5/16" or 6-3-5/16, and lengths come back in feet, inches and fractions. Calculator arithmetic is exact fraction math, not decimals rounded at the last second. When an answer does not land exactly on your chosen precision, the calculator marks it with ≈ instead of quietly handing you a number that is slightly off. Set your precision anywhere from 1/2 to 1/64. EVERY ANSWER SHOWS ITS WORK Tap Show Work on any result to see the formula, your numbers substituted in, and each step, with any rounded step labeled. You should never have to take a calculator's word for it, and on a jobsite you should be able to check it in ten seconds. Tap the ruler beside an answer to see it marked on a tape measure. FOR ELECTRICIANS Offsets, 90 degree stub-ups, and three-point and four-point saddles. For offsets, pick field multipliers, the rounded numbers you already use in your head, or exact trigonometry, and the result is labeled with the one used. Offset angles: 10, 22.5, 30, 45 and 60 degrees. Stub-up marks use the take-ups Klein, Ideal and Greenlee publish for their hand benders: EMT from 1/2 inch to 1-1/4 inch, rigid from 1/2 inch to 1 inch, and IMC from 1/2 inch to 1 inch (Klein IMC to 3/4 inch). You can change any take-up or add your own custom bender and sizes; your values are saved on your device and labeled as yours in Show Work. If no take-up is on file for a bender and size, Brace asks you for one instead of guessing a mark. FOR PIPEFITTERS Rolling offsets: true offset, travel and run for 11.25, 22.5, 30, 45 and 60 degree fittings. FOR CARPENTERS AND GENERAL CONSTRUCTION Stairs solved both ways: from total rise and your tread depth, or from a total run you have to hit, with IRC riser and tread checks. Common and hip or valley rafters with half the ridge thickness actually subtracted, plus the plumb cut angle. Squaring, diagonals, and how far out of square you are. On-center stud and joist layout with the count, the remainder and a preview of the marks. Grade, fall per foot and slope length, with ADA ramp and drain-line checks. Sheet goods and roofing squares with a waste factor. Crown molding miter and bevel settings. Arcs: radius, arc length and more from chord and rise. MATERIALS Concrete in cubic yards, board feet, and area with coverage and waste. WHAT IT WILL NOT DO It does not size beams or headers. That is structural engineering, and a calculator should not pretend otherwise. PRICE Brace is free to download, and the calculator and conduit bending are free to use. Brace Pro unlocks the layout, construction and materials solvers. It is a single one-time purchase: nothing renews and there is no subscription. No tracking, no telemetry, no ads, and your calculations never leave your device.
Screenshots
Verdict
The clearest difference is in-app purchases: xHP Flashtool at none against Brace's 1. xHP Flashtool also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads 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
Both are free to download. Brace sells 1 one-off in-app purchase. xHP Flashtool asks for nothing beyond the download.
xHP Flashtool ships an update weekly, Brace every 6 days. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.
| Parameter | xHP Flashtool | Brace |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (2.8K ratings) — better | — |
| Positive reviews | 93.5% of reviews | — |
| Number of ratings | 2.8K — better | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 277 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | xAutomotive GmbH | Cody Churchwell |
Bugs and requests
xHP Flashtool
Reported bugs
2 issues- App crashes during reflash process
- Inability to sign out of account with wrong email
Requested features
3 requests- Expand compatibility to more vehicle models
- Offer more affordable licensing options
- Implement demo/trial mode for potential users
Brace
Not enough reviews yet to summarise bugs or requests.
In-app purchases
xHP Flashtool
No in-app purchases
Brace
- Sixteenths Pro$14.99









