# SAP Concur vs Legacy D2

The clearest difference is rating: SAP Concur at 4.8 against Legacy D2's 4.0. SAP Concur also leads on ratings volume (1.1M vs 4) and chart position (#86 vs unranked). Legacy D2's advantage is iOS requirement (15.6 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SAP Concur holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: SAP Concur has 1.1M ratings behind it against 4, so its average is the more settled of the two.

SAP Concur ships an update every 2 weeks, Legacy D2 fortnightly. The most recent releases landed on October 22, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SAP Concur | Legacy D2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.1M ratings)](https://appshunter.io/ios/app/sap-concur/id335023774/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/legacy-d2/id6736384115/reviews) |
| Number of ratings | **1.1M** | 4 |
| Positive reviews | 20.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free | Free |
| Best chart rank | **#86** | — |
| Size | 536 MB | 129 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Concur](https://appshunter.io/developer/335023777) | [Clinical Dermatology Conferences](https://appshunter.io/developer/1275711415) |

## What reviewers say

### SAP Concur

[App page](https://appshunter.io/ios/app/sap-concur/id335023774)

**Currently charting:** #86 Top Free · Business (US App Store)

Manage your work travel and expenses on the go. Submit receipts, book trips, and approve reports directly from your mobile device. Stay organized with real-time alerts and personalized suggestions.

**Highlights:** Approve expense reports and invoices, Capture receipts with photos, Book flights, hotels, and car rentals, Track mileage automatically, Integrate with TripIt for alerts

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient for on-the-go expenses
- 📸 Easy to upload receipts
- 🕰️ Saves time compared to desktop
- 💻 Integrates well with web version

**What reviewers complain about**

- 🐛 Buggy, crashes frequently
- 🔍 Difficult to navigate and find information
- 🕰️ Slow performance and loading times
- 🤖 Poor OCR and receipt recognition
- 🔒 Unreliable authentication and login issues

**Reported bugs**

- Photos not saving or uploading properly
- Expense details not syncing between app and web
- Inconsistent currency and exchange rate handling
- Unexpected app crashes and freezes

**Requested features**

- Batch upload receipts
- Customizable expense categories
- Improved mileage tracking
- Better integration with travel booking
- Ability to edit report details on mobile


### Legacy D2

[App page](https://appshunter.io/ios/app/legacy-d2/id6736384115)

Access up-to-date conference information, manage your schedule, and connect with attendees. Learn about speakers, browse exhibitors, and view session presentations for an enhanced event experience.

**Highlights:** Manage personal schedule, View attendee list, Learn about speakers, Browse exhibitors, Access session presentations, Event details

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SAP Concur free?

SAP Concur is free to download, with no in-app purchases.

### Is Legacy D2 free?

Legacy D2 is free to download, with no in-app purchases.

### Which has better reviews, SAP Concur or Legacy D2?

SAP Concur is rated higher. SAP Concur averages 4.8 out of 5 from 1.1M ratings, while Legacy D2 averages 4.0 from 4 ratings.

### Do SAP Concur or Legacy D2 have ads?

Neither SAP Concur nor Legacy D2 shows ads.

### Which is updated more often, SAP Concur or Legacy D2?

SAP Concur ships an update every 2 weeks, and Legacy D2 fortnightly. Most recently, SAP Concur was updated on October 22, 2026 and Legacy D2 on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*