Comparison

PCB (Personal Client Book) vs TopicFlow

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

Head to head
About

PCB (Personal Client Book)

Features
Read full description

Are you a consultant, freelancer, real estate agent, or sales professional? Relying on memory or complicated Excel sheets is risky. PCB (Personal Client Book) helps you organise your business relationships efficiently directly from your iPhone. In the digital age, your client list is your most valuable asset. With PCB, your data belongs only to you. We offer a smart alternative to cloud-based CRMs. Why professionals choose PCB: 100% Private & Local (GDPR Friendly) Your data never leaves your device. Unlike cloud-based CRMs, we do not store, analyse, or sell your information. You have full control, making compliance with data privacy standards simple. Smart Client Records Go beyond just a phone number. Create detailed profiles for each client. Keep notes on preferences, business details, and deal status in one clean interface. Activity Log Track every interaction. Log calls, meetings, and emails in a chronological timeline. Be prepared for every meeting by knowing exactly what was discussed last time. Works Anywhere Whether you are in a remote area with poor reception or travelling abroad, PCB works perfectly offline. Access your database anytime without needing an internet connection. Key Features: Secure Storage: Local database on your iPhone. Activity Tracking: Log calls and meetings in seconds. Smart Search: Find any client instantly. Minimalist Design: Simple, fast, and battery-efficient. Ditch the spreadsheet and upgrade your workflow. Download PCB today and keep your business organised securely.

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

PCB (Personal Client Book)4 screens
TopicFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: PCB (Personal Client Book) 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TopicFlow sells 3 in-app purchases, starting at $4.99 per month. PCB (Personal Client Book) asks for nothing beyond the download.

UpkeepUpdate frequency

PCB (Personal Client Book) ships an update every 2 weeks, TopicFlow every 9 days. The most recent releases landed on October 17, 2026 and September 28, 2026 respectively.

Scorecard1 real difference · 8 level
PCB (Personal Client Book) versus TopicFlow: the parameters behind the verdict, then further details
ParameterPCB (Personal Client Book)TopicFlow
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size38 MB67 MB
Age rating4+4+
DeveloperALEKSANDR SOROKIN亦君 潘

In-app purchases

None

PCB (Personal Client Book)

No in-app purchases

3 purchases

TopicFlow

Subscriptions2
  • TopicFlow Monthly Subscription$4.991 Month
  • TopicFlow Yearly Subscription$29.991 Year
One-time1
  • TopicFlow Lifetime Access$69.99

Questions

Is PCB (Personal Client Book) free?
PCB (Personal Client Book) is free to download, with no in-app purchases.
Is TopicFlow free?
TopicFlow is free to download, with in-app purchases available.
Do PCB (Personal Client Book) or TopicFlow have ads?
Neither PCB (Personal Client Book) nor TopicFlow shows ads.
Which is updated more often, PCB (Personal Client Book) or TopicFlow?
PCB (Personal Client Book) ships an update every 2 weeks, and TopicFlow every 9 days. Most recently, PCB (Personal Client Book) was updated on October 17, 2026 and TopicFlow on September 28, 2026.

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