TopicFlow vs Magic Photo Ruler. AI.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TopicFlow
This app transforms AI conversations into structured, reusable notes, plans, and summaries. It allows users to branch discussions for focused follow-ups and capture key ideas before they are lost. Organize your AI-generated content locally and export it when ready.
- Transform AI chats into reusable notes
- Branch conversations for focused follow-ups
- Capture and organize key ideas
- Refocus AI discussions without re-prompting
- Export and share selected content
- Local topic history organization
- Connect own AI provider keys
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TopicFlow turns AI chats into reusable notes, plans, outlines, decisions, and summaries. Instead of leaving every AI conversation as one long thread, TopicFlow gives your thinking structure. Keep your main line clear, branch into focused follow-up chats, then bring the strongest results back into reusable work. What you can do with TopicFlow: - Capture ideas before they disappear from long chat threads. - Branch AI chats for questions, alternatives, research notes, and next steps. - Refocus a conversation without rewriting prompts from scratch. - Turn selected discussion into notes, plans, requirements, decision records, or summaries. - Organize topic history locally on your device. - Use TopicFlow subscription access for DeepSeek-powered AI inside the app. - Export and share only when you choose. - Back up to your own iCloud or Google Drive app data space when backup is enabled. TopicFlow is built for writers, founders, builders, students, and independent thinkers who want AI conversations to produce durable work instead of disposable chat history. Important: TopicFlow subscription access unlocks the app workflow and hosted DeepSeek-powered AI features. AI availability, quotas, fees, rate limits, output rules, and terms may still be governed by DeepSeek and app store purchase rules. Terms of Use (EULA): https://specaxe.com/terms
Magic Photo Ruler. AI.
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Magic Photo Ruler is an AI measurement app that tells you the actual size of an object using just a single photo. Its key features include: AI measurement using photos, automatic recognition of reference objects that allow measurement without a ruler, measurement of multiple objects and detailed dimensions by part within a single photo, a precision digital measuring tape that uses your phone screen as is, screen calibration using a credit card, saving measurement records, and support for 12 languages. AI Measurement Using Photos When you photograph an object to measure or select one from your gallery, the AI automatically calculates its width, length, and height. You can also specify the object directly, such as by saying, "Measure the chair." Automatic Recognition of Reference Objects It automatically identifies standard objects in the photo, such as credit cards, A4 paper, or coins, and uses them as references. If there is no suitable reference, it estimates the size using surrounding clues, such as water bottles or door heights, so there is no need to keep a ruler nearby. Multiple Objects and Detailed Dimensions Measure multiple objects simultaneously from a single photo and analyze dimensions for specific parts, such as chair seat height or armrest height. Each result is provided with a reliability score and a retake guide. Precision Digital Tape Measure and Screen Calibration You can use your phone screen as a real tape measure (cm/mm and inches). Place a standard credit card on the screen and adjust the size using the −/+ buttons to create an accurate tape measure that fits the device perfectly; once calibrated, the calibration is maintained. Record Saving and Multilingual Support Measurement results are saved on the device, allowing you to review photos, summaries, and detailed dimensions. It supports 12 languages, including Korean, English, Japanese, German, Spanish, French, Hindi, Indonesian, Portuguese, Russian, Vietnamese, and Arabic. When you switch languages, the AI result explanation is also displayed in the corresponding language.
Screenshots
Verdict
The clearest difference is in-app purchases: Magic Photo Ruler. AI. at none against TopicFlow's 3. On price, update cadence, ads 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. TopicFlow sells 3 in-app purchases, starting at $4.99 per month. Magic Photo Ruler. AI. asks for nothing beyond the download.
TopicFlow ships an update every 9 days, Magic Photo Ruler. AI. every 10 days. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.
| Parameter | TopicFlow | Magic Photo Ruler. AI. |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 67 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | 亦君 潘 | Seugjae Kang |
In-app purchases
TopicFlow
- TopicFlow Monthly Subscription$4.991 Month
- TopicFlow Yearly Subscription$29.991 Year
- TopicFlow Lifetime Access$69.99
Magic Photo Ruler. AI.
No in-app purchases
Questions
Is TopicFlow free?
Is Magic Photo Ruler. AI. free?
Do TopicFlow or Magic Photo Ruler. AI. have ads?
Which is updated more often, TopicFlow or Magic Photo Ruler. AI.?
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