Gemma 2B AI Chat vs OnePreview
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gemma 2B AI Chat
This AI assistant offers private, offline conversations to boost productivity and creativity. It's a one-time purchase, eliminating subscription fees. Download the LLM model after installation for secure interactions.
- Offline AI conversations
- Enhances productivity
- Boosts creativity
- One-time purchase
- No subscription fees
- Secure and private
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Introducing Gemma 2B AI Chat, your exclusive private AI assistant. Designed to enhance your productivity and creativity, this is a one-time purchase application that provides access to a comprehensive suite of AI capabilities without the need for recurring subscription fees. Eliminate the burden of subscription costs! Upon initial app installation, you will be prompted to download the LLM model to facilitate secure and private conversations. A minimum of 3 GB of free storage space is necessary to install the complete LLM model.
OnePreview
This app allows you to preview and interact with various developer file formats, including Markdown, code, databases, and archives, directly on your iPhone and iPad. It offers local processing for speed and privacy, with features like PDF export and structured data inspection.
- Markdown and MDX rendering
- JSON, YAML, XML, CSV, TSV, TOML, ENV parsing
- SQLite database inspection
- Source code and log viewing
- ZIP and TAR.GZ archive content preview
- Mermaid diagrams and KaTeX math rendering
- A4 PDF export for Markdown files
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Preview Markdown, source code, structured data and archives on iPhone and iPad. OnePreview is a local-first file viewer with no account required. READ MARKDOWN, DIAGRAMS AND MATH View GitHub-style Markdown with tables, task lists and highlighted code. Switch between rendered content and source. Mermaid diagrams and KaTeX formulas use bundled rendering assets. EXPORT MARKDOWN TO PDF Open a standard Markdown file (.md or .markdown) in OnePreview to create an A4 PDF report. Check the actual PDF preview, with continued table headers, wrapped code, Mermaid diagrams and KaTeX formulas, then save it using the system file interface. Document content is processed on your device. INSPECT DATA, CODE AND ARCHIVES Read structured data and source code, inspect SQLite schemas and sample rows without editing the database, and see the folder hierarchy inside ZIP and TAR.GZ archives before extracting. SUPPORTED FORMATS Markdown (.md, .markdown), MDX, TextBundle, TextPack, JSON, JSONL, YAML, XML, CSV, TSV, TOML, ENV, INI, properties, Apple property lists (plist), SQLite (.sqlite, .sqlite3, .db), source code, plain text, logs, ZIP, TAR.GZ and TGZ. Syntax highlighting supports languages including Swift, Python, JavaScript, TypeScript, Java, C/C++, Objective-C, Ruby, Rust and Shell. OPEN YOUR FILES Tap Open File in OnePreview, or long-press a supported document in Files, choose Open With, then select OnePreview. A normal tap in Files may use Apple's built-in preview; OnePreview does not replace every system preview on iPhone or iPad. Try the sample folder from the home screen to explore supported formats.
Screenshots
Verdict
The clearest difference is review sentiment: OnePreview at 100% against Gemma 2B AI Chat's 0%. OnePreview also leads on price (Free vs $4.99) and rating (5.0 vs 1.7). Gemma 2B AI Chat's advantage is ratings volume (3 vs 1). On ads, in-app purchases 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
OnePreview is free to download; Gemma 2B AI Chat costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
OnePreview holds the better App Store score, 5.0 against 1.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 0% of Gemma 2B AI Chat's written reviews are positive against 100% of OnePreview's.
Gemma 2B AI Chat ships an update every 2 months, OnePreview weekly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Gemma 2B AI Chat | OnePreview |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 1.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 9 MB |
| Age rating | 9+ | 4+ |
| Developer | Sozzled LLC | 培克 罗 |
Customer experience
Gemma 2B AI Chat
OnePreview
In-app purchases
Gemma 2B AI Chat
No in-app purchases
OnePreview
No in-app purchases
Questions
Is Gemma 2B AI Chat free?
Is OnePreview free?
Which has better reviews, Gemma 2B AI Chat or OnePreview?
Do Gemma 2B AI Chat or OnePreview have ads?
Which is updated more often, Gemma 2B AI Chat or OnePreview?
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