Peak Pocket AI

A pocket lab for on-device AI

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Run language models entirely on your iPhone and measure how they behave: speed, confidence, recall, heat, and battery. Private by design, no account, works offline. Peak Pocket AI is a lab for language models that run on your iPhone. Chat privately with open models, then look under the hood: how fast they generate, how confident they are in every word, how well they remember a long prompt, and how your phone holds up under sustained load. PRIVATE BY DESIGN Models run on the device. Your chats, notebook, photos, and settings never leave your iPhone. No account, no analytics, no ads. Once a model is downloaded, everything works in airplane mode. A LAB NOTEBOOK FOR EVERY GENERATION Every reply is recorded with its seed, settings, timings, and device state. Rerun any run with identical settings and see whether the output reproduces, character for character. Export runs as CSV or JSON, or as a signed report that anyone can check for changes. LIVE TELEMETRY Watch tokens per second, time to first token, memory, and thermal state as a reply streams in. SEE WHAT THE MODEL WAS THINKING Confidence shading shows how sure the model was of each word. Tap any word to see the alternatives it nearly chose, with their probabilities. Reasoning models show their thinking above the answer. EVALUATIONS Score models on built-in question sets for knowledge, math, tool calling, and structured JSON output, or import your own. Compare two models on the same questions with confidence intervals. EXPERIMENTS Run the same prompt and seed across models or settings. Measure how speed and memory change as the context fills, and test long-context recall: hide a fact at different depths of a long prompt and chart how often the model finds it. ENDURANCE AND ENERGY Measure what sustained generation does to your phone: throughput over time, throttling, thermal state, and battery used. An energy-per-token estimate is shown when a run is measured on battery. VISION AND APPLE'S ON-DEVICE MODEL Ask vision models about a photo, processed on the device. On iPhones with Apple Intelligence, chat with and evaluate Apple's built-in model alongside open models. BRING YOUR OWN MODELS Browse Hugging Face for GGUF models with a fit estimate for your phone's memory, including gated models with your access token. Optionally connect an OpenAI-compatible provider with your own API key; remote chats are clearly marked. MAKE IT YOURS Four themes in light and dark, including High Contrast, a colorblind-safe confidence scale, science personas, and share cards for any run or comparison. Built by Peak Summit Labs.

  • 5.0
    out of 5
    1 Ratings

- Protocols: one-button Speed check, Trust check, and Heat and battery tests that check the phone is ready first (cool, power, battery) and record exactly how they ran. - Rigor levels for experiments: Standard alternates the models, discards a warmup run and lets the phone cool between repeats; results lead with the effect size and its 95% interval. - Parameter sweep: time one model across settings such as flash attention, GPU layers and KV cache type. - Blind arena: compare two models on your own prompts without knowing which wrote which, and build your own ranking. - Simpler model settings: a sampling preset and a load profile (Auto, Max speed, Low memory) on top, a list of what differs from the defaults, and every control still under All controls. - LoRA adapters, a chat template viewer, and quick comparison of the same model at different quantizations. - Siri and Shortcuts: ask your model, run a quick benchmark, or open the Lab. - Every run records the engine that produced it and whether the GPU was used; evaluations draw a random seeded sample of questions and show intervals for calibration. - Experiments let you choose the reply length and turn thinking off or on. - Scrolling up while a reply streams no longer pulls you back down; swipe down to hide the keyboard mid-reply. - A clear message when a chat fills the model's context window.

The developer, Myron Koch, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    Peak Summit Labs LLC
    Size
    56.9 MB
    Category
    Developer Tools
    Compatibility
    Requires iOS 16.4 or later.
    • iPhone
      Requires iOS 16.4 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    18+
    • 18+
    • Infrequent
      Cartoon or Fantasy Violence
      Realistic Violence
      Profanity or Crude Humor
      Mature or Suggestive Themes
      Horror/Fear Themes
      Medical Treatment information
      Alcohol, Tobacco, Drug Use or References
      Sexual Content or Nudity
      Guns or Other Weapons
    Copyright
    © 2026 Peak Summit Labs LLC