# Notion CSV sync — Advanced CSV import for Notion

> Advanced CSV import for Notion (iPhone/iPad app by John-Erling Holmenes Fredriksen.)

- Source: https://appshunter.io/ios/app/notion-csv-sync/id6755126156 (this page in markdown: same URL + `.md`)
- Developer: [John-Erling Holmenes Fredriksen](https://appshunter.io/developer/1798516077)
- Category: Utilities, Productivity
- Price: $12.00
- Age rating: 4+
- Requires: iOS 26.0 · 5 MB
- Languages: American English
- Released: 2025-11-29
- Data updated: 2026-07-17
- User reviews in markdown: https://appshunter.io/ios/app/notion-csv-sync/id6755126156/reviews.md

## What is Notion CSV sync?

Notion CSV sync makes it simple to import and update your Notion databases from CSV files with professional-grade control over your data. Whether you're migrating data, maintaining a product catalog, or keeping records up to date, this app provides the advanced tools you need for precise data management.

WHAT MAKES THIS DIFFERENT
While Notion offers basic CSV import, Notion CSV sync provides advanced filtering and control that transforms how you work with data. Test syncs with sample rows before committing. Remove duplicates automatically. Filter by specific criteria. Select exact row ranges. This level of precision is essential for real-world data management.

ADVANCED ROW FILTERING
Row Range Selection - Import specific ranges like rows 1-100 or 500-1000, perfect for batch processing or targeting specific sections
Column-Based Filtering - Apply sophisticated conditions including equals, contains, starts with, ends with, is empty, and more. Chain multiple filters for precise control
Duplicate Removal - Automatically detect and remove duplicates based on any column, with case sensitivity options and choice of keeping first or last occurrence
Sample Testing - Import every Nth row to test your configuration with representative data before running a full sync
Combined Filtering - Mix and match methods to create exactly the data subset you need

SMART COLUMN MAPPING
Automatic matching of CSV columns to Notion properties
Support for all major property types including text, numbers, dates, select, multi-select, checkboxes, URLs, email, phone, people, files, and relations
Visual mapping interface with type indicators
Flexible ignore option for unused columns

INTELLIGENT SYNC MODES
Add New Entries - Only create new records
Update Existing - Only update existing records
Add and Update - Intelligently merge new and existing data
Key column selection for precise matching

RELATION FIELD SUPPORT
Link entries between databases automatically with exact matching
Support for multiple relations using semicolon separators
Clear warnings for unmatched values
Pre-caching for faster processing

SECURE AND PRIVATE
OAuth 2.0 authentication with credentials stored in iOS Keychain
Client secrets protected by secure backend proxy
You control which Notion pages the app can access
No data collection

IMPORT FROM ANYWHERE
Share Extension for importing from Files, Mail, or any app
Direct file opening by double-tapping CSV files
Seamless handoff from Share Sheet to main app

PROFESSIONAL EXPERIENCE
Real-time progress tracking with detailed counts
Concurrent processing with intelligent rate limiting
Automatic retry logic for network issues
Comprehensive sync history with detailed records
Partial success handling
Background sync support with notifications

PERFECT FOR
Data migrations requiring precise control
Product catalogs with duplicate prevention
Testing configurations with sample data
Processing large datasets in batches
Importing filtered data subsets
Inventory and project database updates
Any scenario requiring sophisticated bulk data import


## Version history (last 4 releases)

### 1.3.6 — 2025-12-09

Cleaned up user interface, and clarified error messages.

### 1.3.5 — 2025-12-06

Improved handling of time and date.

### 1.3.1 — 2025-12-03

We've added advanced filtering options, to make CSV import even more powerful!

### 1.2.1 — 2025-11-29

No release notes.

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## More apps by John-Erling Holmenes Fredriksen

- [FNFs lønnskalkulator](https://appshunter.io/ios/app/fnfs-lnnskalkulator/id6742459220)

All apps by John-Erling Holmenes Fredriksen: https://appshunter.io/developer/1798516077

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-17.*