Both Apples and Lemon are fruits. Apples are larger and sweet - lemons are smaller and sour. Apples are red (or green when unripe), lemons are yellow.
Comparison chart
 | Apples | Lemon |
|---|---|---|
 |  | |
| Family | Rosaceae | Rutaceae |
| Kingdom | Plantae | Plantae |
| Magnesium | Yes 7 mg | 8mg per 100g |
| Other minerals | Traces of iron, zinc, manganese and copper | Traces of selenium, zinc, manganese and copper |
| Calcium | Yes 9.5 mg | 26mg per 100g |
| Iron | In traces | 0.6mg per 100g |
| Phosphorous | Yes 9.5 mg | 16mg per 100g |
| Vitamin C | Yes 9 mg | 53 mg per 100g |
| Potassium | Yes 158mg | 138mg per 100g |
| Fat | 0 g | 0.2 |
| Vitamin A | Yes 73 IU | 22 IU per 100g |
| Calories | 77 | 29 |
| Genus | Malus | Citrus |
| Order | Rosales | Sapindales |
| Acidity | Yes pH level is around 3.3 | pH level 2 |
| Species | M. domestica | Citrus x limon, among others |
Comments: Apples vs Lemon