Outline vs PingModel
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Outline
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A line-drawing app for measurement notes, made by an architectural designer for personal use. Draw as you measure, and capture your thoughts on the spot. Measure as you draw, and capture your ideas right away. Outline is a measurement assistant tool that lets you draw measured lengths directly as lines on the screen, record them quickly with one hand, and save them like notes. Sketch dimensions as if on paper, then review them later or export them as DXF files for further organization. Designed for fast-paced architectural and interior job sites, Outline provides a simple yet precise digital measurement workspace. Key Features β’ Easily record line lengths using number input + dial drag β’ Supports mm and ft-inch unit systems β’ Export measurement results as DXF files β’ Line notes, pen drawing, and text input for record support β’ Angle adjustment, compass, and other measurement assist tools β’ Create components and place them inside drawn spaces (rooms) β’ Measure real-world lengths using a digital ruler Who Itβs For β’ Architects and interior professionals who need to record dimensions quickly on site β’ Users who prefer organizing measurements intuitively like hand sketching β’ Anyone who wants to create simple measured drawings quickly Β Privacy Outline uses only the minimum permissions required to provide core features. All data is processed locally on your device and is never transmitted externally.
PingModel
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Most AI tools give you one assistant and expect it to do everything. PingModel takes a different approach. @mention the model you need, compare perspectives side by side, and make decisions with better signal β all in one workspace. PingModel is BYOK (bring your own key). You connect your own provider keys, choose your own models, and keep full control over cost and access. Nothing is routed through us. > How It Works - @mention any bot: Ping the model you need by name. No menus, no mode switching β just @mention a bot in a channel and it answers your query. - Simultaneous mode: All bots reply to the same query at once. Compare reasoning, tone, and accuracy across models in a single glance. - Collaboration mode: Bots respond one after another, each building on the conversation. One model drafts, another critiques, a third refines. > Workspace Features - Multi-bot channels: Talk with multiple model-backed bots in a single conversation. - Threaded discussions: Keep deep dives separate while preserving context in the main timeline. - Per-bot configuration: Set model, handle, temperature, and system prompt so every bot carries a distinct role. - Channel system prompts: Define stable instructions that carry into both channel and thread replies. - Context controls: Choose full history when continuity matters, or limit to the last N messages for faster, tighter responses. - Provider management: Configure providers and custom endpoints with full flexibility. - iOS-native experience: Fast, polished interface built for daily use. > Supported Providers OpenRouter Β· OpenAI Β· Anthropic Β· Azure OpenAI Β· Cerebras Β· DeepSeek Β· Google AI Β· Groq Β· Mistral AI Β· Ollama Β· Perplexity Β· xAI Β· Kimi Β· Z.AI Β· Zhipu Β· MiniMax Β· and any OpenAI-compatible endpoint. PingModel helps you compare perspectives, reduce noise, and choose better answers β all from one workspace.
Screenshots
Verdict
Outline and PingModel are too close to call on the numbers: across 5 compared parameters β price, ads, in-app purchases and device support among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Outline | PingModel |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | β |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 69 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyundong Kim | Blupurple Design Ltd. |
In-app purchases
Outline
No in-app purchases
PingModel
No in-app purchases









