WriterDuet vs Zenko
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WriterDuet
This intuitive screenwriting software offers real-time collaboration and powerful features for writers on the go. Its user-friendly interface allows for instant writing, with robust tools for outlining, reporting, and revision management. Secure and industry-standard, it ensures your work is always saved and accessible.
- Real-time collaboration
- Offline mode
- Card outliner
- Revision drafts
- Automatic statistics
- Export from any point
Read full descriptionHide full description
A simple and intuitive interface lets you dive into writing instantly on the go or as you lay in bed and stare at your phone screen (check out dark editor if that's you). While we've focused on ease of use for mobile, we also haven't restricted you from taking advantage of all of the power that WriterDuet has to offer on other platforms. So go wild! Industry-standard, secure, and intuitive screenwriting software. Features: • Real-time collaboration between users and devices • Smart line types and one-touch icons • Auto-save • Card outliner • Export from any point in history • Offline mode • Filter by line type or with custom tags • Scene & Location, Character Reports • Automatic statistics • Revision Drafts and Auto-Snapshots Testimonials: "WriterDuet is the most intuitive, most user-friendly scriptwriting software I’ve ever used.” – Ed Solomon (Men in Black, Bill & Ted’s Excellent Adventure) “WriterDuet helped me escape Final Draft. Being web-based gives me the flexibility to write anywhere on any system. And I never have to worry about crashes and lost hours of work ever again. ... I recommend it to every other screenwriter I meet.” – Christopher Ford (SpiderMan: Homecoming, Robot & Frank) “The app saves my whole thought process for me. On top of that, these guys are iterating the app so fast, they're running circles around the industry leader. WriterDuet definitely feels like the future.” – Andy Bobrow (Community, Malcolm in the Middle, Last Man On Earth) "WriterDuet combines instinct and user-friendliness for a unique and exhilarating way for writers to collaborate, whether in real-time or in non-synchronized work. It has features that are vital for teamwork in scriptwriting. It's a meticulously-created gem, and a must-have for collaborations" - Jim Uhls (Fight Club) “Do yourself a favor and use WriterDuet.” – Alisha Brophy & Scott Miles (Nicholl Fellowship 2014 winners, White Girl Problems)
Zenko
Read full descriptionHide full description
Build better habits. One day at a time. Zenko is a beautifully designed habit tracker that helps you create positive daily routines, maintain streaks, and visualize your progress — all stored locally on your device with zero cloud dependency. Whether you want to exercise daily, read more, drink water, meditate, journal, or build any custom habit — Zenko makes habit tracking simple, visual, and rewarding. — WHY ZENKO? — Most habit tracker apps overwhelm you with features you don't need. Zenko focuses on what actually works: streak tracking, visual progress feedback, and smart reminders that keep you accountable every single day. — FLEXIBLE HABIT TRACKING — • Create habits with flexible schedules — daily, weekly, or custom days • Three tracking types: simple check-off, duration (minutes), and rep counting • Set difficulty levels to pace yourself (Beginner, Intermediate, Advanced) • Add personal notes to habits and individual completions • Organize with 50+ icons across Health, Fitness, Learning, Mindfulness, and Productivity — STREAK TRACKING & MOTIVATION — • Automatic streak counter — see how many consecutive days you've stayed consistent • Streak freeze protection — don't lose your progress for one missed day • Skip rest days without breaking your streak • Milestone celebrations at 7, 14, 21, 30, 50, 100, 200, and 365 days • Streak-at-risk alerts so you never accidentally break a run — STATS, ANALYTICS & HEATMAP — • GitHub-style heatmap calendar — visualize your entire year at a glance • Completion rates over 7, 30, and 90-day windows • Trend charts with rolling averages • Habit strength score (0–100) that grows with consistency • Smart insights: best habit, weakest day, streaks at risk • Current and best streak tracking per habit — DAILY REMINDERS & NOTIFICATIONS — • Per-habit reminders at your preferred time • Morning and evening check-in notifications • Streak-at-risk alerts before the day ends • Milestone celebration notifications — BEAUTIFUL THEMES & PERSONALIZATION — • 10 stunning themes with light mode and dark mode variants • 50+ habit icons across multiple categories • 12 color options for habit cards • Available in 15 languages: English, Spanish, French, German, Italian, Portuguese, Russian, Polish, Dutch, Turkish, Hindi, Japanese, Korean, Chinese, and Arabic — 100% OFFLINE & PRIVATE — • All data stored locally on your device — no cloud, no servers • No account required, no sign-up • No personal data collected or shared • Your habit data never leaves your phone — PRO FEATURES — Unlock the full experience with Zenko Pro: • Unlimited habits (free: up to 5) • All 10 premium themes • Advanced analytics with heatmaps and trend charts • Home screen widgets for quick progress checks • 3 streak freezes per day (no ads) • Direct CSV data export • Completely ad-free experience Choose Monthly ($3.99/mo), Yearly ($24.99/yr — save 48%), or Lifetime (pay once, own forever). — GET STARTED IN MINUTES — Our guided onboarding helps you create your first habit, set up reminders, and start building streaks right away. No learning curve — just open the app and go. Download Zenko and start building the habits that build you.
Screenshots
Verdict
The clearest difference is in-app purchases: WriterDuet at none against Zenko's 3. WriterDuet also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.0). On price 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. Zenko sells 3 one-off in-app purchases. WriterDuet asks for nothing beyond the download.
| Parameter | WriterDuet | Zenko |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (81 ratings) — better | — |
| Positive reviews | 37.4% of reviews | — |
| Number of ratings | 81 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 249 MB | 53 MB |
| Age rating | 12+ | 4+ |
| Developer | WriterDuet Inc. | SOFTPULSE INFOTECH PRIVATE LIMITED |
Bugs and requests
WriterDuet
Reported bugs
5 issues- Freezing on login screen
- Disappearing text and formatting errors
- Inability to access or export projects
- Compatibility issues with newer devices
- Inconsistent behavior across platforms
Requested features
5 requests- Offline mode support
- Improved mobile app optimization
- More customization options
- Better integration with other writing tools
- Expanded template and formatting options
Zenko
Not enough reviews yet to summarise bugs or requests.
In-app purchases
WriterDuet
No in-app purchases
Zenko
- Zenko: Habit Tracker Pro — Monthly$1.99
- Zenko: Habit Tracker Pro — Yearly$12.99
- Zenko: Habit Tracker Pro — Lifetime$39.99









