Serato DJ debuted on the same day in all six ios-music/free markets (GB #3, US #4, DE #8, HR #11, JP #15, KR #22). In addition, Microsoft Authenticator, Teams, Outlook, and LinkedIn all entered overall/free in four or five markets, making DJ apps and work apps the two main stories today.

New Entries

Today’s biggest development is Serato DJ (Serato Limited). It entered ios-music/free across all six markets on the same day: GB #3, US #4, DE #8, HR #11, JP #15, and KR #22. The same app also appeared in four ios-music/grossing markets (DE #19, JP #36, US #36, GB #84). TypeDraw also entered ios-productivity/paid in all six markets (GB #4, US #6, DE #7, HR #7, KR #24, JP #42).

Another notable development is the simultaneous arrival of work apps. Microsoft Authenticator (five markets, including DE #13 and US #14), Microsoft Teams (four markets, including GB #13 and US #20), Microsoft Outlook (four markets), and LinkedIn (four markets) all appeared in overall/free. SAP Concur also entered ios-business/free in four markets. In sports, NBA: Live Games & Scores appeared in ios-sports/free across four markets.

Sharp Monthly Rises (Baseline Date: 2026-09-21)

The baseline date, 2026-09-21, was 30 days ago, but it is also the oldest collection date retained in the archive. Therefore, this is not a strict month-over-month comparison. The largest rise was Collins British Bird Guide (GB ios-reference/paid #2, +93), followed by Internet Speed Limiter (GB #6, +90) and StationWeather (KR ios-weather/grossing #10, +90). Apps that were unranked on the baseline date and reached #1 this time include move2pay (DE overall/free #1) and ダックサバイバー (JP ios-games/free #1).

Trends by Rank Tier

Higher ranks are more stable. The top tier (ranks 1–10) was 79% held, 3% new, and |Δ| 4.3. The mid tier (ranks 11–50) was 73%, 10%, and 8.9, while the bottom tier (ranks 51–100) was 61%, 25%, and 12, indicating that most turnover occurs lower down the rankings. Google dominates slot counts with 127 in the top tier and 148 in the mid tier. Microsoft Corporation follows with 30 top-tier slots.

Trends by Country

The US had the highest top-10 retention rate at 84%. HR had the lowest at 76%, and it also recorded the most new entries at 1,412. KR had the fewest, at 1,080. Apps that are consistently strong across all six markets also stand out clearly. TestFlight (developer-tools/free) and Procreate Pocket (graphics-design/paid) ranked #1 in every market. Duolingo was also #1 in education/grossing across all markets. Cursor and Replit split the top ranks in developer-tools/grossing.

Trends by Category

The categories with the most new entries were ios-education (447), ios-music (434), and ios-utilities (428). ios-shopping was the quietest, with 124. ios-developer-tools and ios-reference had low top-10 retention rates (71%), followed by ios-sports (72%). ios-news and ios-social-networking were the highest at 86%.

Key Findings

1. Serato DJ Debuts in ios-music/free Across All Six Markets on the Same Day

It entered all six markets simultaneously: GB #3, US #4, DE #8, HR #11, JP #15, and KR #22. It also appeared in four ios-music/grossing markets (DE #19, JP #36, US #36, GB #84). Its presence in both the free and grossing charts suggests that monetization may be following downloads. ios-music recorded 434 new entries, the second-highest total among categories.

Confidence: High

2. Microsoft Work Apps and LinkedIn Enter overall/free Together

Microsoft Authenticator entered five markets (DE #13, US #14, JP #20, HR #43, KR #73). Microsoft Teams entered four (GB #13, US #20, DE #32, JP #50), Microsoft Outlook entered four (GB #50, HR #50, US #65, DE #74), and LinkedIn appeared in four markets. Together with SAP Concur in ios-business/free (four markets), it was a day when work apps rose as a group.

Confidence: Medium

3. TypeDraw Appears Simultaneously in ios-productivity/paid Across Six Markets

Its rankings are GB #4, US #6, DE #7, HR #7, KR #24, and JP #42. It is within the top 10 in four Western markets, suggesting that the paid app is beginning to sell across countries at the same time.

Confidence: High

4. NBA Enters sports/free in Four Markets, While WNBA Also Jumps in HR

NBA: Live Games & Scores debuted at GB #19, DE #31, KR #33, and JP #38. In HR, WNBA: Live Games & Scores rose to ios-sports/grossing #12 (+84). ios-sports is a high-turnover category, with 382 new entries and a 72% top-10 retention rate.

Confidence: Medium

5. The Largest 30-Day Rise Is Collins British Bird Guide (GB #2, +93)

The baseline date of 2026-09-21 is the oldest collection date in the archive. Over these 30 days, Collins British Bird Guide climbed to GB ios-reference/paid #2 (+93). In GB, Chirp! Bird Songs UK & Europe also reached #11 with a +86 change from the previous ranking, pointing to overlapping demand for bird-guide apps.

Confidence: Medium

6. Apps Unranked on the Baseline Date Reach #1: move2pay (DE)

move2pay (SVAX GmbH) simultaneously took #1 in DE overall/free and ios-health-fitness/free. It was also up +93 from the previous ranking. In KR, 크레페 debuted at #1 in graphics-design/free and #2 in overall/free. Both are market-specific developments.

Confidence: High

7. The Top Ranks Are Stable, While Turnover Is Concentrated at the Bottom; Google Dominates Top Slots

The top tier was 79% held, 3% new, and |Δ| 4.3. The bottom tier was 61% held, 25% new, and |Δ| 12. Google holds 127 top-tier slots and 148 mid-tier slots.

Confidence: High

8. The US Is the Most Stable, While HR Sees the Most Turnover

The US had the highest top-10 retention rate at 84%, while HR had the lowest at 76%. HR also had the most new entries at 1,412, including Tivimax IPTV Player (entertainment/paid #1) and How Many Sleeps (lifestyle/paid #1).

Confidence: High

9. Proven Favorites Across All Markets: TestFlight, Procreate Pocket, and Duolingo

TestFlight (developer-tools/free) and Procreate Pocket (graphics-design/paid) ranked #1 in all six markets. Duolingo was also #1 in education/grossing in every market. The top of developer-tools/grossing is occupied by the AI coding apps Cursor and Replit.

Confidence: High

10. The Top 10 in developer-tools and reference Are Highly Volatile

Both categories had a 71% top-10 retention rate, the lowest among all categories. New entries in developer-tools/paid included My Styles (KR #1), ompanion (GB #3), Custom JS & CSS for Safari (GB #5), and Built With for Safari (US #7). Small Safari extension tools are rotating in one after another.

Confidence: Medium

11. education Has the Most New Entries, While shopping Has the Fewest

ios-education had the most new entries, with 447. In HR, Endless Alphabet (paid #4) and Metamorphabet (paid #5) entered the rankings. ios-shopping, with 124, was the category with the least movement.

Confidence: High

Recommended Actions

• Make Serato DJ’s simultaneous debut across six markets the main theme of today’s coverage. Because it appears in both free and grossing charts, prioritize comparison and beginner content for DJ apps.
• The simultaneous entries of Microsoft Authenticator, Teams, Outlook, LinkedIn, and SAP Concur may indicate returning demand for work apps. Confirm whether their rankings persist in the next collection before publishing a roundup.
• Briefly introduce TypeDraw (ios-productivity/paid, top 10 in four Western markets) as a new paid app.
• Treat GB bird-guide apps (Collins British Bird Guide #2 and Chirp! #11) as a seasonal UK-local topic.
• In response to the concurrent NBA and WNBA movement, consider a basketball feature in the sports-app section.

Data Quality Notes

For the target date, 2026-10-21, all 468 charts in scope were collected (0 missing). A comparison with the previous collection on 2026-10-19 is also available for all 468 / 468 charts. The monthly baseline date of 2026-09-21 is 30 days earlier, but it is the oldest collection date retained in the archive, so a full month of continuous data is not yet available. KR/featured is degraded in the source. Although 228,612 missing ratings are reported, this exceeds the 45,714 rows analyzed. Because the aggregation units may differ, avoid analysis using ratings.