Outreach.io vs 4DI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Outreach.io
This mobile application helps sales professionals manage tasks, calls, and emails efficiently while on the go. It provides streamlined workflows for viewing and executing tasks, making calls, and accessing prospect and account details, keeping users connected to their sales process.
- Task management
- On-the-go calling
- Call recording
- Call history
- Email management
- Prospect and account details
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The Outreach Mobile App empowers sellers to stay efficient on the go, ensuring you never miss a beat. Designed with simplicity and intuitive workflows, this app helps you stay productive even when you're away from your desk. Whether you're handling tasks, making calls, or managing your accounts, Outreach Mobile App keeps you connected to your sales process. Key Features: * Task Management: View and execute call and email tasks seamlessly. * Call on the Go: Make and receive calls, powered by Outreach Voice. * Call Recording: Record and review your calls to keep track of key conversations. * Call History: View your call history and edit call logs. * Email on the Go: Send and receive emails, and manage your inbox. * Prospects & Accounts: Easily look up prospect and account details on the go. What to Expect: * Focused on Efficiency: A streamlined tool to handle your essential tasks while on the move * Easy to Use: Built for AEs and Field Reps to stay in the flow
4DI
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4DI is an offline reference tool for data integrity in regulated environments — built for QA, validation, manufacturing, and laboratory teams working under GxP. The app organizes data integrity knowledge into five areas: ALCOA++ principles, regulatory frameworks, the data lifecycle, typical inspection findings, and a glossary. ALCOA++ PRINCIPLES 10 principles, each with a clear definition and practical examples contrasting good practice with a typical violation: - Attributable - Legible - Contemporaneous - Original - Accurate - Complete - Consistent - Enduring - Available - Traceable (added per the EMA guideline on computerised systems and electronic data in clinical trials, 2023) REGULATORY FRAMEWORKS 7 frameworks side by side, each with a summary, core requirements, and a link to the official source: - FDA 21 CFR Part 11 - EU GMP Annex 11 - MHRA GxP Data Integrity Guidance - EMA Guideline on computerised systems and electronic data in clinical trials (2023) - PIC/S PI 041 - WHO TRS 1033, Annex 4 — Guideline on data integrity (2021) - ICH Q7 Frameworks are tagged by region (US / EU / International). A comparison view highlights key differences across four topics: audit trail, electronic signatures, risk-based approach, and quality culture & human factors. DATA LIFECYCLE Six phases — Creation, Processing, Review & Approval, Reporting, Retention, Archival & Destruction — each mapped to its relevant ALCOA++ principles, typical pitfalls, and regulatory focus. INSPECTION FINDINGS 17 findings modeled on public patterns from FDA Warning Letters, Form 483 observations, and EU GMP non-conformities. Organized by category and severity, each finding lists the principles violated, its regulatory basis, and remediation measures, with links to official databases. Full search included. GLOSSARY 29 terms — ALCOA terms, regulatory abbreviations (CFR, GMP, GLP, GCP...), technical terms (audit trail, metadata, electronic signature), and quality terms (CAPA, deviation, OOS) — each with a definition and context. Bookmark terms for quick access, get a "term of the day," and search even without typing accents. FIVE LANGUAGES 4DI speaks English, German, French, Spanish and Italian. A new installation starts in your iPhone's language when 4DI supports it. You can switch the language any time in the app's Settings. BUILT FOR OFFLINE USE Light, dark, or system appearance. Works entirely offline: no accounts, no tracking, no ads, no permissions required. Bookmarks stay on your device. COMMUNITY & SUPPORT Report a bug, suggest a feature, or flag a content correction through the app's Settings — linked to robspace's public GitHub hub for discussion. For direct support: support@robspace.de. DISCLAIMER: 4DI is a privately developed helping tool. It is not endorsed, certified, or validated by any regulatory authority. Content is for informational purposes only and must not replace official regulatory guidance or professional advice.
Screenshots
Verdict
The clearest difference is update cadence: 4DI at every 5 days against Outreach.io's fortnightly. Outreach.io's advantage is iOS requirement (15.6 vs 18.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Outreach.io ships an update fortnightly, 4DI every 5 days. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.
| Parameter | Outreach.io | 4DI |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (26 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 26 — better | — |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 125 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Outreach Corporation | Robert Poetzsch |
In-app purchases
Outreach.io
No in-app purchases
4DI
No in-app purchases









