Nullstack VS Catatku

Compare Nullstack VS Catatku and see what are their differences

Rating: 0 reviews
Pricing: Open source
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Rating: 0 reviews
Pricing: Freemium $9.99 / One-off (One payment, covers 1 year)
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Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Framework popularity: 100% vs 0%
alternatives listed: 1 vs 15

Base details

Website, pricing, platforms and company facts side by side.

	Nullstack	Catatku
Website	nullstack.app	catatku.com
Pricing	Open source	Freemium $9.99 / One-off (One payment, covers 1 year) Official pricing
Company	—	Startup from Indonesia · 1 - 9 employees · 2025
Listed in	Framework JavaScript Tech Typescript +1	Budgeting Personal Finance Expense Management Finance Financial Planner Expense Tracking +3

About Nullstack and Catatku

In their own words, as submitted to SaaSHub.

Nullstack

Catatku

No description of Nullstack yet.

Catatku is a daily expense and personal finance tracker for Android and iOS. Log income and expenses in a few seconds, and daily, weekly, monthly and yearly reports build themselves, with charts, a calendar view and PDF/Excel export. Plan ahead with budgets per category, savings goals, bills with...

Features and specs

What each product offers, as listed by its team.

Nullstack 5 features

Catatku 8 features

Full-Stack Capabilities
Nullstack allows for the development of both client-side and server-side functionalities within a single project, providing a more unified development process.
Seamless SSR
It offers built-in support for server-side rendering, improving performance and SEO without the need for complex configurations.
Zero tooling
Nullstack provides a setup that requires minimal configuration and does not depend heavily on additional tools, simplifying the development workflow.
Component-based Architecture
Promotes the use of components, encouraging modularity and reusability of code, which can improve maintainability and scalability of applications.
Hot Module Replacement
Supports HMR, allowing developers to see immediate changes in their applications without refreshing the entire page, improving development efficiency.

Possible disadvantages

Smaller Community
Compared to more established frameworks, Nullstack has a smaller community, which can result in fewer resources and third-party tools.
Learning Curve
Developers need to learn the Nullstack-specific ways of handling both front-end and back-end development, which might be a hurdle for those accustomed to other frameworks.
Limited Ecosystem
Due to its newer and less widely adopted nature, there might be limited third-party libraries and plugins readily available compared to more mature frameworks.
Rapidly Evolving
Being relatively new and possibly evolving quickly, developers might face breaking changes more frequently compared to more established technologies.

Offline use
Works 100% offline, forever. Cloud sync is optional
Pricing model
One-time purchase. Premium is a single payment covering one year, Pro a single payment forever. Nothing auto-renews
Wallets & transactions
Unlimited transactions across cash, bank and e-wallet accounts, with transfers and admin fees (3 accounts free, unlimited on Premium)
Planning
Budgets, savings goals, recurring bills with instalment tenor, plus debts and receivables
Reports & export
Daily, weekly, monthly and yearly reports, charts, calendar view, PDF and Excel export
Separate books
Unlimited separate ledgers — personal, household, business — each with its own accounts, budgets, reports, currency and month-start date (Pro)
Multi-device sync
Real-time sync across up to 5 devices (Pro)
Security
Fingerprint / Face ID plus 6-digit PIN app lock (Premium)

Videos

Walkthroughs and reviews on video.

Nullstack 3 videos + Add

Catatku 0 videos + Add

Full-stack with Nullstack - Part 3

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100

Nullstack

Catatku

100% 100%

0% 0%

100% 100%

0% 0%

100% 100%

Questions & Answers

As answered by people managing Nullstack and Catatku.

What makes your product unique?

Catatku's answer:

Runs without internet. Sync is optional, not required.
You pay once. Premium covers one year, Pro is permanent. Nothing auto-renews.
Separate books for personal, household and business money. Each book keeps its own accounts, budgets, reports, currency and month-start date (Pro).
Log a transaction by sending a WhatsApp message, voice note or photo of a receipt. This is a paid Pro add-on, sold in Indonesia and Malaysia.
No ads on any plan.

Which are the primary technologies used for building your product?

Catatku's answer:

Flutter and Dart, for Android and iOS.
SQLite for local storage on the device.
Supabase for optional cloud sync and backup.

Why should a person choose your product over its competitors?

Catatku's answer:

No subscription. Premium is one payment for a year, Pro is one payment forever.
The app keeps working on a bad connection or none at all.
Month-start date is set per book, so budgets and reports follow payday instead of the 1st.
Free covers unlimited transactions and stays free.
No ads, whatever you paid.

How would you describe the primary audience of your product?

Catatku's answer:

People tracking daily spending.
Couples and households sharing one budget.
Small businesses and freelancers who need business and personal money in separate books.
Main markets are Indonesia and Malaysia. The app is available in Indonesian, English and Malay.

What's the story behind your product?

Catatku's answer:

Indra Rahmana Hedar, a full-stack developer with over nine years in web and mobile, built Catatku in 2025 as a tool to track his own personal and business money.
It became a product under PT Tokokoding Ilmu Digital, based in Makassar, Indonesia.
The idea came from watching people quit expense tracking. They stop because the tools are tedious, not because they stop caring. So recording had to take seconds, and the reports had to build themselves.
The rules it was built on have not changed: your data stays on your device, the app runs offline, there are no ads, and upgrades are paid once instead of renewing forever.
As of August 2026 it has over 25,000 registered accounts and more than 260,000 recorded transactions.

Who are some of the biggest customers of your product?

Catatku's answer:

Personal. A main book for daily spending, recurring bills and personal savings in separate wallets.
Couples and households. Both people track one household budget from their own devices and see the same data.
Small business. Business money stays apart from personal money, with income, expenses, supplier debts and customer receivables all visible.
Freelance and side hustle. Project earnings and work costs stay separate from day-to-day spending.

User comments

Share your experience with using Nullstack and Catatku. For example, how are they different and which one is better?

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