1Contact Pro vs OneLLM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1Contact Pro
Organize, clean, and back up your contacts with this smart manager. Features AI-powered duplicate detection, secure cloud backups, and easy sharing options. Ideal for professionals and individuals seeking an efficient address book solution.
- AI-powered duplicate detection and merging
- Secure local and cloud backups
- Contact cleaning and optimization
- Business card scanner with OCR
- Bulk contact sharing and export
- Birthday and anniversary reminders
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1Contact – Smart Contact Manager Overview 1Contact is a comprehensive contact management application that helps you organize, clean, back up, and maintain your contacts efficiently. With powerful AI-driven features and intuitive tools, 1Contact transforms how you manage your address book. Main Features Contact Management • Add, edit, delete, and search contacts with ease • Smart organization and categorization • Quick access to frequently contacted people • Advanced search with multiple criteria Contact Cleaning & Optimization • Remove contacts with missing or incomplete information • Delete outdated or unused contacts • Clean up duplicate phone numbers and email addresses • Optimize your contact list for better performance Duplicate Detection & Merging • AI-powered detection by name, phone number, or email • Smart merging with conflict resolution • Batch merge multiple duplicates • Preview changes before applying Backup & Restore • Secure local backups • Cloud backup integration (iCloud, Google Drive, Dropbox) • Automatic scheduled backups • One-click restore functionality • Export contacts in multiple formats (vCard, CSV) Sharing & Communication • Share multiple contacts via Email, SMS, or messaging apps • Bulk sharing with custom groups • QR code generation for easy sharing • Export contact lists for professional use Additional Smart Features • Business card scanner with OCR technology • International phone number formatting • Contact analytics and insights • Custom contact groups and labels • Birthday and anniversary reminders • Import contacts from various sources Privacy & Security • Local data processing for enhanced privacy • Encryption for sensitive information • No unnecessary permissions required • GDPR-compliant data handling Performance & Usability • Fast and responsive interface • Offline functionality • Cross-device synchronization • Dark mode support • Accessibility features Why Choose 1Contact? 1Contact combines powerful tools with an intuitive design, making it ideal for both personal and business use. Our AI-powered features help keep your contact list clean and organized while ensuring important data is always safe and accessible. Perfect for: • Business professionals managing large contact lists • Individuals wanting to declutter their address book • Anyone needing secure backup and restore options • Users who frequently share contact information If you enjoy using 1Contact, please share it with your friends and leave a review on the App Store. Your feedback helps us improve and supports our continued development. Thank you for choosing 1Contact.
OneLLM
This app offers advanced AI capabilities with both cloud and local processing for privacy and performance. It includes features like offline OCR, voice-to-text, password generation, and QR code scanning. Developers can customize and load thousands of models from Hugging Face.
- Dual AI engine (cloud & local)
- Offline OCR document scanning
- Offline voice-to-text transcription
- Password generator & QR code scanner
- Developer Mode for custom LLM loading
- API integration (OpenAI, Claude)
- Parameter tuning for LLMs
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Local AI. Online models. Your computer, within reach. OneLLM brings everyday AI and your computer’s agents into one workspace on iPhone and iPad. CHOOSE HOW YOU CHAT Download a compatible model for on-device, offline chat, or use your own credentials with supported online providers. Connect to Ollama or OpenClaw on a reachable server. Different tasks call for different models. BIGGER LOCAL MODELS An optional 35-billion-parameter MoE package uses expert streaming with about 3B active parameters. Smaller text and vision models are also available. Model capability, speed and memory needs vary by device. YOUR ONELLM OFFICE, ON YOUR PHONE Pair with a compatible OneLLM Office computer using its connection code. Continue a conversation, choose an available local or online model, follow task progress and respond to approvals. Open task files from a separate Files view. The desktop preview must remain running and reachable; desktop release availability may vary. OPENCODE MOBILE CONNECTOR Connect to OpenCode on your computer from iOS. Continue sessions, choose models and agents, browse files, review changes and respond to permissions. Scan the matching connection code or enter the service address. DEEPSEEK HARNESS CONNECTION Keep DS Harness conversations and workspaces close. Send messages and supported attachments, follow agent activity and continue from your phone. Use the DS Harness connection code in its matching module. PHOTOS, FILES AND VOICE See image previews in chat, check attachments before sending and remove them with a tap. English voice input uses bundled local transcription. Notes and on-device text recognition are also included. Local models require a separate download, storage and compatible hardware. The optional 35B package needs about 16.6 GB of storage; 12 GB RAM is recommended. Remote connections require a running computer and a reachable trusted LAN, Tailscale network or supported secure service address. Computer services use the model accounts configured there. Direct online chat requires your own provider credentials; provider subscriptions and API charges are not included. Review AI output before using it.
Screenshots
Verdict
The clearest difference is price: OneLLM at Free against 1Contact Pro's $1.99. 1Contact Pro's advantage is ratings volume (363 vs 26). On rating, review sentiment, update cadence and ads 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
OneLLM is free to download; 1Contact Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.5 for 1Contact Pro against 4.6 for OneLLM. That said, the two scores are not equally well evidenced: 1Contact Pro has 363 ratings behind it against 26, so its average is the more settled of the two. Written reviews are what separate them: 50% of 1Contact Pro's written reviews are positive against 56% of OneLLM's.
1Contact Pro ships an update monthly, OneLLM fortnightly. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.
| Parameter | 1Contact Pro | OneLLM |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.5 (363 ratings) | 4.6 (26 ratings) — better |
| Positive reviews | 50.0% of reviews | 55.6% of reviews — better |
| Number of ratings | 363 — better | 26 |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 45 MB | 145 MB |
| Age rating | 4+ | 17+ |
| Developer | Roxwin Vietnam Technologies Company Limited | ESOTECH Ltd |
Customer experience
1Contact Pro
OneLLM
Bugs and requests
1Contact Pro
Reported bugs
12 issues- App crashes when merging duplicates
- App lags and stops loading at duplicate contact section
- Backup not working correctly, only sends one name
- Korean names appear incorrectly
- App crashes when searching for duplicates
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- App freezes or crashes during duplicate search
- Contacts deleted when trying to remove duplicates
- Numbers are reversed in merging
- App doesn't open or load anything
- App deletes non-duplicate contacts
- App keeps processing without finishing tasks
- Cannot sign up, email not sent, cannot use Gmail or Facebook
Requested features
3 requests- Add Arabic language support
- Include a dialer in the app
- Add call log history
OneLLM
Not enough reviews yet to summarise bugs or requests.
In-app purchases
1Contact Pro
No in-app purchases
OneLLM
No in-app purchases









