BLE Customizable Controller vs Haptic Strings
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLE Customizable Controller
This app offers a basic Bluetooth Low Energy controller for embedded programming projects. It's designed to help developers test and refine their code by providing a simple input interface.
- Bluetooth Low Energy connectivity
- Rudimentary controller interface
- Ideal for programming projects
- Testing and development tool
- Simple user interface
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BLE Customizable Controller is a Bluetooth Low Energy Controller meant for embedded/programming projects, providing a simple rudimentary controller for developing and testing one's programming projects.
Haptic Strings
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Haptic Strings is a small audio haptics experiment that turns your iPhone into a guitar string simulator for designers and developers. Swipe across a string and you feel a custom vibration pattern that matches the string’s audio and decay, as closely as the Taptic Engine allows. Each string is tuned with a handcrafted custom haptic pattern that follows the way a real string vibrates over time, rather than a simple linear rumble. The result is a richer, more believable illusion of a guitar string “ringing” in your hand, blending sound, touch and motion on screen into one interaction. Use it as a pocket lab to study multisensory design, demo custom haptics to your team, or open it during a talk when you want people to feel what you are explaining. What you can do • Swipe to feel each string Drag your finger along individual strings to trigger synchronized audio and custom haptics. Each string has its own pattern, tuned around its frequency and decay curve within the iPhone hardware range. • Study custom haptics in isolation Toggle a dedicated haptic only mode so you can focus on vibration without audio. Great for workshops, teardowns and side by side comparisons. • See the UI respond with the vibration Watch strings highlight and thicken as they play, with gradients and timing that follow the same energy as the haptic and sound. Visual, audio and touch feedback are designed to work as one experience. • Onboard people in seconds Clear affordances and subtle prompts guide people toward the vertical swipe gesture, so even someone who skips the instructions can figure it out by instinct. • Share the process behind the prototype Open the profile drawer to see background on the project and links to resources on custom haptics, audio haptic design and the tools used to build the prototype. Who it is for Haptic Strings is made for: • Designers who want to understand custom haptics through their hands, not only documentation • Developers who need a concrete reference when tuning haptic patterns • Educators who want a simple, memorable demo of multi sensory interaction • Anyone curious about how sound, touch and visual feedback can align to create richer experiences. Design principles behind Haptic Strings The app is built around a few simple ideas: • Multi sensory first Start from the feeling of the interaction, then let visuals and UI follow that core experience. • Respect hardware constraints The Taptic Engine only supports a limited frequency range, so higher strings are approximated instead of faked as perfect matches. The goal is honesty and coherence, not lab accuracy. • Tiny, focused, opinionated No chords, no recording, no extra knobs. Just one clear interaction that explores what custom haptics can do in a narrow but deep space. No account. No ads. Just a small, focused tool to help you design and discuss better haptics.
Screenshots
Verdict
The clearest difference is update cadence: BLE Customizable Controller at every 2 days against Haptic Strings's fortnightly. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BLE Customizable Controller ships an update every 2 days, Haptic Strings fortnightly. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.
| Parameter | BLE Customizable Controller | Haptic Strings |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 17.6 |
| Further details — not scored | ||
| Size | 2 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | James Larson | Thuy Gia Nguyen |
In-app purchases
BLE Customizable Controller
No in-app purchases
Haptic Strings
No in-app purchases
Questions
Is BLE Customizable Controller free?
Is Haptic Strings free?
Do BLE Customizable Controller or Haptic Strings have ads?
Which is updated more often, BLE Customizable Controller or Haptic Strings?
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