Comparison

MLC Chat vs SpitePDF

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

Head to head
About

MLC Chat

Engage in conversations with open language models directly on your iPad or iPhone. Once a model is downloaded, all interactions occur locally, ensuring privacy and offline functionality without internet access. This app is designed for non-commercial use, allowing you to run various open-source language models on your device.

Highlights
  • Local AI model chat
  • Offline functionality
  • No internet required
  • Privacy-focused
  • Open-source project integration
  • Downloadable language models
Features
Read full description

MLC Chat lets users chat with open language models locally on ipads and iphones. After a model is downloaded to the app, everything runs locally without server support, and it works without internet connections do not record any information. Because the models run locally, it only works for the devices with sufficient VRAM depending on the models being used. MLC Chat is part of open source project MLC LLM, with allows any language model to be deployed natively on a diverse set of hardware backends and native applications. MLC Chat is a runtime that runs different open model architectures on your phone. The app is intended for non-commercial purposes. It allows you to run open-language models downloaded from the internet. Each model can be subject to its respective licenses.

About

SpitePDF

Features
Read full description

SpitePDF is a complete PDF workshop for iPhone and iPad, with a ribbon of tools that is easy to find your way around and a look that fits iOS and iPadOS. READ - Fast, smooth viewing of long documents and large drawing sets, with continuous, single-page, two-page and cover layouts - Thumbnails, outline, search with results list, bookmarks and Reading Mode - Tabs and split view to work in two documents side by side MARK UP - Highlight, underline, strike through and squiggly text markup - Notes, text boxes, callouts, shapes, lines, arrows, clouds and freehand ink with pressure - Stamps, image stamps and voice notes - Annotation list, replies, and comment summary EDIT - Edit text and images directly on the page - Redact permanently, by selection, search or pattern, with the hidden content really removed - Recognise text in scans with OCR, then review and correct the words ORGANISE - Insert, delete, rotate, reorder, split, merge and extract pages - Headers, footers, page numbers, Bates numbers, watermarks and backgrounds - Crop, resize and clear margins FORMS AND SIGNATURES - Fill forms, calculate fields and run form scripts - Sign with a certificate, verify signatures, and add Fill and Sign images - Submit forms when you choose to CONVERT AND SHARE - Export pages as images, text, Word, HTML or flattened PDF; make a PDF from images - Password protection and permissions, Reduce File Size, Sanitize and Print PRIVATE BY DESIGN - Everything runs on your iPhone and iPad. No account, no tracking, no analytics - The network is used only when you submit a form or request a signature timestamp Try every feature free for 14 days, then unlock SpitePDF on iPhone, iPad and Mac with a single one-time purchase. No subscription.

Screenshots

MLC Chat2 screens
SpitePDF4 screens

Verdict

The call

The clearest difference is in-app purchases: MLC Chat at none against SpitePDF's 12. SpitePDF's advantage is update cadence (daily vs every 2 months). On price, ads, device support and iOS requirement 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. SpitePDF sells 12 one-off in-app purchases. MLC Chat asks for nothing beyond the download.

UpkeepUpdate frequency

MLC Chat ships an update every 2 months, SpitePDF daily. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
MLC Chat versus SpitePDF: the parameters behind the verdict, then further details
ParameterMLC ChatSpitePDF
PriceFreeFree
Rating4.2 (83 ratings) — better—
Positive reviews68.3% of reviews—
Number of ratings83 — better—
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size1.7 GB206 MB
Age rating17+4+
DeveloperTianqi ChenJASON RANDALL DORFMAN

Bugs and requests

MLC Chat

Reported bugs

17 issues
  • Phi model crashes on iOS 26.0.1 17 Pro Max
  • App crashes on iPad Pro 4th Gen, iPadOs 17.7
  • RedPajama model crashes app on initialization
  • Update is extremely slow
  • Download model button disabled in new version
Show 12 more
  • RedPajama model crashes, custom model download removed
  • App closes when hitting send on iPhone 13
  • Conversation resets when app is backgrounded
  • Vicuna and Mistral 7B models cause crashes
  • Some 7b q4f16/q4f32 models crash on iPhone 15 Pro
  • App crashes on iPhone 13 mini
  • Cannot load other models from URL
  • Crash on iPhone 12
  • Severe heating and frequency reduction on A15
  • Low VRAM failed initialization on 3GB LP DDR4X phone
  • Cannot run 4bit model on iPhone 15 with 8GB RAM
  • Loading models from HF MLC official Repo causes crashes

Requested features

14 requests
  • Ability to import custom models (from URL/Hugging Face)
  • Support for more specific models (DeepSeek, Phi-2, Gemma 2B/7B, MoE Mixtral 8x7B, LLaVA)
  • History of conversations
  • iOS shortcuts support
  • Ability to export entire responses
Show 9 more
  • Information on VRAM requirements per phone/model
  • Ability to change system message/create custom profiles
  • Ability to edit responses and system prompt
  • Add coffee support
  • Delete downloaded models
  • Change settings per model (repetition penalties, temperature)
  • How-to guide for importing/recompiling LLMs
  • Estimate model compatibility before download
  • Support for CN and ZH languages

SpitePDF

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

MLC Chat

No in-app purchases

12 purchases

SpitePDF

One-time12
  • SpitePDF Counsel 14-Day TrialFree
  • SpitePDF Print 14-Day TrialFree
  • SpitePDF Takeoff 14-Day TrialFree
Show 9 more
  • SpitePDF Access 14-Day TrialFree
  • SpitePDF Review 14-Day TrialFree
  • 14-Day Free TrialFree
  • SpitePDF Full Version$29.99
  • SpitePDF Review$99.99
  • SpitePDF Access$129.99
  • SpitePDF Takeoff$149.99
  • SpitePDF Counsel$149.99
  • SpitePDF AEC Bundle$199.99

Questions

Is MLC Chat free?
MLC Chat is free to download, with no in-app purchases.
Is SpitePDF free?
SpitePDF is free to download, with in-app purchases available.
Do MLC Chat or SpitePDF have ads?
Neither MLC Chat nor SpitePDF shows ads.
Which is updated more often, MLC Chat or SpitePDF?
MLC Chat ships an update every 2 months, and SpitePDF daily. Most recently, MLC Chat was updated on November 3, 2026 and SpitePDF on October 29, 2026.

Other comparisons